{"id":29506,"date":"2023-09-16T15:35:24","date_gmt":"2023-09-16T18:35:24","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/moderate-variable-copy\/"},"modified":"2023-09-13T15:43:37","modified_gmt":"2023-09-13T18:43:37","slug":"survey-design-best-practices","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/el\/%cf%83%cf%87%ce%b5%ce%b4%ce%b9%ce%b1%cf%83%ce%bc%cf%8c%cf%82-%ce%ad%cf%81%ce%b5%cf%85%ce%bd%ce%b1%cf%82-%ce%ba%ce%b1%ce%bb%cf%8d%cf%84%ce%b5%cf%81%ce%b5%cf%82-%cf%80%cf%81%ce%b1%ce%ba%cf%84%ce%b9\/","title":{"rendered":"\u0392\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1"},"content":{"rendered":"<p>\u039f \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bb\u03ae\u03c8\u03b7 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03bd \u03ba\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd. \u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c4\u03b7 \u03b2\u03ac\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bb\u03bb\u03bf\u03b3\u03ae \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03c9\u03bd \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03bb\u03ae\u03c8\u03b7 \u03c4\u03b5\u03ba\u03bc\u03b7\u03c1\u03b9\u03c9\u03bc\u03ad\u03bd\u03c9\u03bd \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03c9\u03bd \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bb\u03bb\u03b5\u03b3\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2. \u039f\u03b9 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03c1\u03cc\u03c0\u03bf \u03c0\u03bf\u03c5 \u03bc\u03b5\u03b3\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03b1 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac \u03b1\u03bd\u03c4\u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2, \u03b5\u03bb\u03b1\u03c7\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03b7 \u03bc\u03b5\u03c1\u03bf\u03bb\u03b7\u03c8\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bb\u03bb\u03ad\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9. \u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2, \u03bf\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03bf\u03c5\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b1\u03c6\u03b5\u03af\u03c2, \u03c3\u03c5\u03bd\u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2, \u03b4\u03b9\u03b5\u03c5\u03ba\u03bf\u03bb\u03cd\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03bd\u03b1 \u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03ae\u03c3\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03ce\u03c3\u03bf\u03c5\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2.&nbsp;<\/p>\n\n\n\n<p>\u039f\u03b9 \u03ba\u03b1\u03bb\u03ac \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03bf\u03b4\u03b7\u03b3\u03bf\u03cd\u03bd \u03c3\u03b5 \u03c0\u03b9\u03bf \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03ad\u03b3\u03ba\u03c5\u03c1\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1, \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bd\u03b1 \u03b5\u03be\u03ac\u03b3\u03bf\u03c5\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03ac\u03c3\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b2\u03b1\u03c3\u03b9\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03c3\u03b5 \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03b1. \u0397 \u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03c9\u03bd \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03c3\u03c5\u03bc\u03b2\u03ac\u03bb\u03bb\u03b5\u03b9 \u03c3\u03c4\u03b7 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd, \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03b8\u03c5\u03bc\u03af\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03bd\u03b1 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ac\u03c3\u03c7\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c4\u03b9 \u03c4\u03b1 \u03c3\u03c7\u03cc\u03bb\u03b9\u03ac \u03c4\u03bf\u03c5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03be\u03b9\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b9\u03bc\u03b1. \u03a3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03ac\u03c1\u03b8\u03c1\u03bf, \u03b8\u03b1 \u03b4\u03b9\u03b5\u03c1\u03b5\u03c5\u03bd\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03c9\u03bd \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd, \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03b5\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bc\u03b2\u03bf\u03c5\u03bb\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b2\u03bf\u03b7\u03b8\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bd\u03b1 \u03c3\u03c7\u03b5\u03b4\u03b9\u03ac\u03c3\u03bf\u03c5\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03b4\u03af\u03b4\u03bf\u03c5\u03bd \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<h2 id=\"h-survey-design-best-practices\"><strong>\u0392\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2<\/strong><\/h2>\n\n\n\n<p>\u039f\u03b9 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03b9 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03bc\u03b5\u03bd\u03b5\u03c2 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03c9\u03bd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd. \u039f\u03b9 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b5\u03c5\u03c1\u03ad\u03c9\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bb\u03bb\u03bf\u03b3\u03ae \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03b3\u03ba\u03ad\u03bd\u03c4\u03c1\u03c9\u03c3\u03b7 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ce\u03bd \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b5\u03c2, \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03c0\u03bf\u03c5 \u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ac \u03b6\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03c4\u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03c4\u03c1\u03cc\u03c0\u03bf \u03c0\u03bf\u03c5 \u03bd\u03b1 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03ba\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1. \u0391\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03c0\u03c4\u03c5\u03c7\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd, \u03cc\u03c0\u03c9\u03c2 \u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03c1\u03c9\u03c4\u03b7\u03bc\u03b1\u03c4\u03bf\u03bb\u03bf\u03b3\u03af\u03bf\u03c5, \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2, \u03bf\u03b9 \u03c4\u03cd\u03c0\u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd, \u03bf\u03b9 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2, \u03b7 \u03c1\u03bf\u03ae \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03c0\u03c1\u03bf\u03c3\u03ad\u03bb\u03ba\u03c5\u03c3\u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03b5\u03c7\u03cc\u03bd\u03c4\u03c9\u03bd. \u039f\u03b9 \u03ba\u03b1\u03bb\u03ac \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1 \u03c4\u03c9\u03bd \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03b5\u03c7\u03cc\u03bd\u03c4\u03c9\u03bd, \u03bf\u03b4\u03b7\u03b3\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c3\u03b5 \u03b1\u03c5\u03be\u03b7\u03bc\u03ad\u03bd\u03b7 \u03b4\u03ad\u03c3\u03bc\u03b5\u03c5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03b9\u03bf \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03b5\u03c5\u03c1\u03ae\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<h2 id=\"h-defining-a-clear-goal\"><strong>\u039a\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c3\u03b1\u03c6\u03bf\u03cd\u03c2 \u03c3\u03c4\u03cc\u03c7\u03bf\u03c5<\/strong><\/h2>\n\n\n\n<p>\u039f \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03b1\u03c6\u03bf\u03cd\u03c2 \u03c3\u03c4\u03cc\u03c7\u03bf\u03c5 \u03b4\u03b9\u03b1\u03c4\u03c5\u03c0\u03ce\u03bd\u03b5\u03b9 \u03c4\u03bf\u03bd \u03c3\u03ba\u03bf\u03c0\u03cc \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c4\u03cc\u03c7\u03bf\u03c5\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2, \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c4\u03c9\u03bd \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ce\u03bd \u03ae \u03b3\u03bd\u03ce\u03c3\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03bd\u03c4\u03c1\u03c9\u03b8\u03bf\u03cd\u03bd \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2. \u0388\u03bd\u03b1\u03c2 \u03c3\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c4\u03cc\u03c7\u03bf\u03c2 \u03ba\u03b1\u03b8\u03bf\u03b4\u03b7\u03b3\u03b5\u03af \u03c4\u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2, \u03c4\u03c9\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ce\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae\u03c2 \u03b4\u03bf\u03bc\u03ae\u03c2, \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b5\u03c3\u03c4\u03af\u03b1\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ac\u03c6\u03b5\u03b9\u03b1. \u0395\u03be\u03b5\u03c4\u03ac\u03c3\u03c4\u03b5 \u03c4\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b1 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03ac \u03b5\u03c1\u03c9\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03c0\u03b1\u03bd\u03c4\u03b7\u03b8\u03bf\u03cd\u03bd, \u03c4\u03b9\u03c2 \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03b9\u03c2 \u03ae \u03c4\u03b9\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03bd\u03b7\u03bc\u03b5\u03c1\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b5\u03c0\u03b9\u03b8\u03c5\u03bc\u03b7\u03c4\u03ac \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<h2 id=\"h-creating-effective-surveys\"><strong>\u0394\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd<\/strong><\/h2>\n\n\n\n<p>\u0397 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03b4\u03b9\u03b1\u03c6\u03cc\u03c1\u03c9\u03bd \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ce\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03c4\u03b7\u03c2 \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b5\u03b3\u03ba\u03c5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03c9\u03bd \u03c3\u03c5\u03bb\u03bb\u03b5\u03b3\u03cc\u03bc\u03b5\u03bd\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd. \u03a0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b5\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd, \u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2, \u03b7 \u03b5\u03bc\u03c0\u03bb\u03bf\u03ba\u03ae \u03c4\u03c9\u03bd \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03b5\u03c7\u03cc\u03bd\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03ba\u03bf\u03b9\u03bd\u03ce\u03bd \u03c0\u03b1\u03b3\u03af\u03b4\u03c9\u03bd.<\/p>\n\n\n\n<h3 id=\"h-keeping-personal-questions-to-the-end\"><strong>\u039a\u03c1\u03b1\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03c9\u03c0\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c4\u03bf \u03c4\u03ad\u03bb\u03bf\u03c2<\/strong><\/h3>\n\n\n\n<p>\u0391\u03c5\u03c4\u03ae \u03b7 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03c4\u03b5\u03af\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7 \u03c0\u03c1\u03bf\u03c3\u03c9\u03c0\u03b9\u03ba\u03ce\u03bd \u03ae \u03b5\u03c5\u03b1\u03af\u03c3\u03b8\u03b7\u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c4\u03ad\u03bb\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2. \u039c\u03b5 \u03c4\u03bf\u03bd \u03c4\u03c1\u03cc\u03c0\u03bf \u03b1\u03c5\u03c4\u03cc, \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03b9 \u03ad\u03c7\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b5\u03c5\u03ba\u03b1\u03b9\u03c1\u03af\u03b1 \u03bd\u03b1 \u03bf\u03b9\u03ba\u03bf\u03b4\u03bf\u03bc\u03ae\u03c3\u03bf\u03c5\u03bd \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03bf\u03c3\u03cd\u03bd\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03c0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03be\u03ad\u03c4\u03b1\u03c3\u03b7 \u03c0\u03b9\u03bf \u03c0\u03c1\u03bf\u03c3\u03c9\u03c0\u03b9\u03ba\u03ce\u03bd \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ce\u03bd, \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03c0\u03b9\u03b8\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bb\u03ae\u03c8\u03b7\u03c2 \u03b5\u03b9\u03bb\u03b9\u03ba\u03c1\u03b9\u03bd\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd.<\/p>\n\n\n\n<h3 id=\"h-limiting-survey-length\"><strong>\u03a0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2<\/strong><\/h3>\n\n\n\n<p>\u0397 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03c3\u03c5\u03bd\u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ae\u03c2 \u03ad\u03ba\u03c4\u03b1\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03b8\u03ad\u03bc\u03b1. \u039f\u03b9 \u03bc\u03b1\u03ba\u03c1\u03bf\u03c3\u03ba\u03b5\u03bb\u03b5\u03af\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03bf\u03c5\u03bd \u03c3\u03b5 \u03ba\u03cc\u03c0\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd, \u03bc\u03b5\u03b9\u03c9\u03bc\u03ad\u03bd\u03b7 \u03b4\u03ad\u03c3\u03bc\u03b5\u03c5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae\u03c2. \u039f \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b7 \u03b9\u03b5\u03c1\u03ac\u03c1\u03c7\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03b9\u03bf \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03c9\u03bd \u03b2\u03bf\u03b7\u03b8\u03ac \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b5\u03bd\u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03bf\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd.<\/p>\n\n\n\n<h3 id=\"h-using-closed-ended-questions\"><strong>\u03a7\u03c1\u03ae\u03c3\u03b7 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5<\/strong><\/h3>\n\n\n\n<p>\u0391\u03c5\u03c4\u03ae \u03b7 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5 \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03c0\u03c1\u03bf\u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd. \u039f\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5 \u03b4\u03b9\u03b5\u03c5\u03ba\u03bf\u03bb\u03cd\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b9\u03bc\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1. \u0395\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03c7\u03c1\u03ae\u03c3\u03b9\u03bc\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bb\u03bb\u03bf\u03b3\u03ae \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ce\u03bd \u03ae \u03b1\u03c0\u03cc\u03c8\u03b5\u03c9\u03bd \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf \u03b8\u03ad\u03bc\u03b1.<\/p>\n\n\n\n<h3 id=\"h-avoiding-leading-questions\"><strong>\u0391\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03c0\u03b1\u03c1\u03b1\u03c0\u03bb\u03b1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ce\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd<\/strong><\/h3>\n\n\n\n<p>\u0397 \u03b1\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03b9\u03ba\u03ce\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03b9\u03bc\u03b5\u03bd\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03bf\u03c5\u03b4\u03b5\u03c4\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c4\u03b5\u03c5\u03c7\u03b8\u03b5\u03af \u03b1\u03c5\u03c4\u03cc, \u03bf\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c3\u03b1\u03c6\u03ae \u03ba\u03b1\u03b9 \u03b1\u03bc\u03b5\u03c1\u03cc\u03bb\u03b7\u03c0\u03c4\u03b7 \u03b3\u03bb\u03ce\u03c3\u03c3\u03b1, \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c6\u03b5\u03cd\u03b3\u03bf\u03c5\u03bd \u03c6\u03bf\u03c1\u03c4\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03c5\u03c2 \u03cc\u03c1\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03c0\u03ad\u03c7\u03bf\u03c5\u03bd \u03b1\u03c0\u03cc \u03c5\u03c0\u03bf\u03b8\u03ad\u03c3\u03b5\u03b9\u03c2. \u039f\u03b9 \u03c0\u03b9\u03bb\u03bf\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03bd\u03b1\u03b6\u03ae\u03c4\u03b7\u03c3\u03b7 \u03b1\u03bd\u03b1\u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03cc\u03c4\u03b7\u03c3\u03b7\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b2\u03bf\u03b7\u03b8\u03ae\u03c3\u03bf\u03c5\u03bd \u03c3\u03c4\u03bf\u03bd \u03b5\u03bd\u03c4\u03bf\u03c0\u03b9\u03c3\u03bc\u03cc \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03be\u03ac\u03bb\u03b5\u03b9\u03c8\u03b7 \u03c4\u03c9\u03bd \u03ba\u03b1\u03b8\u03bf\u03b4\u03b7\u03b3\u03b7\u03c4\u03b9\u03ba\u03ce\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd.<\/p>\n\n\n\n<h3 id=\"h-balancing-answer-choices\"><strong>\u0395\u03be\u03b9\u03c3\u03bf\u03c1\u03c1\u03cc\u03c0\u03b7\u03c3\u03b7 \u0395\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2<\/strong><\/h3>\n\n\n\n<p>\u0397 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03b1\u03c5\u03c4\u03ae \u03b5\u03c0\u03b9\u03ba\u03b5\u03bd\u03c4\u03c1\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03b5\u03bd\u03cc\u03c2 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03b7\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c6\u03ac\u03c3\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ce\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03bf\u03c5\u03bd \u03b5\u03c0\u03b1\u03c1\u03ba\u03ce\u03c2 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2. \u03a0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03ad\u03bd\u03b1 \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03c9\u03bc\u03ad\u03bd\u03bf \u03c3\u03cd\u03bd\u03bf\u03bb\u03bf \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ce\u03bd, \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03bf\u03c0\u03c4\u03c1\u03af\u03b6\u03b5\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03cc\u03c8\u03b5\u03b9\u03c2 \u03ae \u03c4\u03b9\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b5\u03c2 \u03c4\u03bf\u03c5\u03c2, \u03b5\u03bb\u03b1\u03c7\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7 \u03bc\u03b5\u03c1\u03bf\u03bb\u03b7\u03c8\u03af\u03b1 \u03c4\u03c9\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd.<\/p>\n\n\n\n<h3 id=\"h-staying-away-from-absolutes\"><strong>\u039c\u03b1\u03ba\u03c1\u03b9\u03ac \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03b1\u03c0\u03bf\u03bb\u03c5\u03c4\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2<\/strong><\/h3>\n\n\n\n<p>\u0391\u03c5\u03c4\u03ae \u03b7 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03ae\u03c1\u03b9\u03b1 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae \u03c3\u03c5\u03bc\u03b2\u03bf\u03c5\u03bb\u03b5\u03cd\u03b5\u03b9 \u03bd\u03b1 \u03bc\u03b7 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b5 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03bf\u03c5\u03c2 \u03cc\u03c1\u03bf\u03c5\u03c2 \u03cc\u03c0\u03c9\u03c2 \"\u03c0\u03ac\u03bd\u03c4\u03b1\", \"\u03c0\u03bf\u03c4\u03ad\" \u03ae \"\u03cc\u03bb\u03bf\u03b9\" \u03c3\u03b5 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2. \u039f\u03b9 \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03bf\u03b9 \u03cc\u03c1\u03bf\u03b9 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03af\u03c3\u03bf\u03c5\u03bd \u03c4\u03b9\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b5\u03bd\u03b4\u03b5\u03c7\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03c3\u03bf\u03c5\u03bd \u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5\u03c2. \u0397 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b1\u03c0\u03bf\u03c7\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c9\u03bd \u03c3\u03c4\u03b9\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03ad\u03c3\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03b5\u03b9\u03ba\u03cc\u03bd\u03b9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03c0\u03cc\u03c8\u03b5\u03c9\u03bd \u03ae \u03c4\u03c9\u03bd \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ce\u03bd \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd.<\/p>\n\n\n\n<h3 id=\"h-avoiding-double-barreled-questions\"><strong>\u0391\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03b4\u03b9\u03c0\u03bb\u03ce\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd<\/strong><\/h3>\n\n\n\n<p>\u0397 \u03b1\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03b4\u03b9\u03c0\u03bb\u03ce\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ae \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03cc\u03c4\u03b9 \u03ba\u03ac\u03b8\u03b5 \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03b5\u03c0\u03b9\u03ba\u03b5\u03bd\u03c4\u03c1\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03bc\u03af\u03b1 \u03bc\u03cc\u03bd\u03bf \u03b9\u03b4\u03ad\u03b1 \u03ae \u03b8\u03ad\u03bc\u03b1. \u039f\u03b9 \u03b4\u03b9\u03c0\u03bb\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b4\u03c5\u03ac\u03b6\u03bf\u03c5\u03bd \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ad\u03c2 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b5\u03c2 \u03ae \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03b5 \u03bc\u03af\u03b1 \u03bc\u03cc\u03bd\u03bf \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7, \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03c3\u03cd\u03b3\u03c7\u03c5\u03c3\u03b7 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03b1\u03bd\u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03ae \u03b5\u03bb\u03bb\u03b9\u03c0\u03b5\u03af\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2. \u039f\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03c5\u03bd \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03ba\u03ac\u03b8\u03b5 \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03b5\u03b9 \u03bc\u03af\u03b1 \u03c0\u03c4\u03c5\u03c7\u03ae \u03ae \u03b6\u03ae\u03c4\u03b7\u03bc\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03c6\u03bf\u03c1\u03ac. \u0395\u03ac\u03bd \u03bc\u03b9\u03b1 \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03c3\u03b5\u03c2, \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03b5\u03af \u03c3\u03b5 \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03ad\u03c2, \u03c3\u03b1\u03c6\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2.&nbsp;<\/p>\n\n\n\n<h3 id=\"h-previewing-the-survey-before-sending-it-out\"><strong>\u03a0\u03c1\u03bf\u03b5\u03c0\u03b9\u03c3\u03ba\u03cc\u03c0\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03c0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c3\u03c4\u03bf\u03bb\u03ae \u03c4\u03b7\u03c2<\/strong><\/h3>\n\n\n\n<p>\u0391\u03c5\u03c4\u03cc \u03c4\u03bf \u03b2\u03ae\u03bc\u03b1 \u03b5\u03c0\u03b1\u03bd\u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03b6\u03b5\u03b9 \u03c4\u03bf \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03bf \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03c0\u03c1\u03b9\u03bd \u03b4\u03b9\u03b1\u03bd\u03b5\u03bc\u03b7\u03b8\u03b5\u03af \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2. \u039c\u03b5 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03b5\u03c0\u03b9\u03c3\u03ba\u03cc\u03c0\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2, \u03bf\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b5\u03bd\u03c4\u03bf\u03c0\u03af\u03c3\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03bf\u03c1\u03b8\u03ce\u03c3\u03bf\u03c5\u03bd \u03c4\u03c5\u03c7\u03cc\u03bd \u03bb\u03ac\u03b8\u03b7, \u03b1\u03c3\u03c5\u03bd\u03ad\u03c0\u03b5\u03b9\u03b5\u03c2 \u03ae \u03b1\u03c3\u03b1\u03c6\u03b5\u03af\u03c2 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2. \u0391\u03c5\u03c4\u03cc \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03b8\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03bc\u03b9\u03b1 \u03b1\u03c0\u03c1\u03cc\u03c3\u03ba\u03bf\u03c0\u03c4\u03b7 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b8\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2, \u03b5\u03bd\u03b9\u03c3\u03c7\u03cd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03b3\u03ba\u03c5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bb\u03bb\u03ad\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9.<\/p>\n\n\n\n<h2 id=\"h-getting-survey-responses\"><strong>\u039b\u03ae\u03c8\u03b7 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2<\/strong><\/h2>\n\n\n\n<p>\u0397 \u03bb\u03ae\u03c8\u03b7 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c3\u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7 \u03c0\u03c4\u03c5\u03c7\u03ae \u03c4\u03c9\u03bd \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03c9\u03bd \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c4\u03b7\u03bd \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bb\u03bb\u03ad\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03b3\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03bf\u03c5\u03bd \u03c4\u03b1 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac \u03b1\u03bd\u03c4\u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2, \u03bf\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ad\u03c2. \u0394\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03b7 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b2\u03ac\u03c3\u03b9\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03c6\u03b9\u03bb\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf\u03bd \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7, \u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c4\u03b1\u03be\u03b7, \u03c4\u03bf\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03b7\u03c2 \u03c3\u03b5 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2. \u0395\u03be\u03b1\u03c4\u03bf\u03bc\u03b9\u03ba\u03b5\u03cd\u03bf\u03c5\u03bd \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03ba\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c5\u03c0\u03b5\u03bd\u03b8\u03c5\u03bc\u03af\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03bf\u03c5\u03bd \u03c3\u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b5\u03c2 \u03c4\u03b7\u03bd \u03b1\u03af\u03c3\u03b8\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c6\u03b5\u03b9\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03b5\u03c0\u03b5\u03af\u03b3\u03bf\u03bd\u03c4\u03bf\u03c2, \u03b5\u03bd\u03ce \u03b7 \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03c3\u03b1\u03c6\u03ce\u03bd \u03bf\u03b4\u03b7\u03b3\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03bf \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c1\u03b5\u03b1\u03bb\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03bf\u03ba\u03b9\u03ce\u03bd \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c7\u03c1\u03cc\u03bd\u03bf \u03bf\u03bb\u03bf\u03ba\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7\u03c2 \u03b5\u03bd\u03b8\u03b1\u03c1\u03c1\u03cd\u03bd\u03b5\u03b9 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae.&nbsp;<\/p>\n\n\n\n<p>\u0397 \u03c0\u03c1\u03bf\u03c3\u03c6\u03bf\u03c1\u03ac \u03ba\u03b9\u03bd\u03ae\u03c4\u03c1\u03c9\u03bd, \u03cc\u03c0\u03c9\u03c2 \u03b1\u03bd\u03c4\u03b1\u03bc\u03bf\u03b9\u03b2\u03ad\u03c2 \u03ae \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03ba\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b1 \u03ac\u03c4\u03bf\u03bc\u03b1 \u03bd\u03b1 \u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03ce\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b5\u03b3\u03b3\u03af\u03c3\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1 \u03b5\u03c5\u03c1\u03cd\u03c4\u03b5\u03c1\u03bf \u03ba\u03bf\u03b9\u03bd\u03cc, \u03bf\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03bf\u03c5\u03bd \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ac \u03ba\u03b1\u03bd\u03ac\u03bb\u03b9\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03bd\u03bf\u03bc\u03ae \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2, \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03b1\u03bd\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03c4\u03bf\u03c5 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03bf\u03cd \u03c4\u03b1\u03c7\u03c5\u03b4\u03c1\u03bf\u03bc\u03b5\u03af\u03bf\u03c5, \u03c4\u03c9\u03bd \u03bc\u03ad\u03c3\u03c9\u03bd \u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ba\u03ae\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ce\u03bd \u03c0\u03bb\u03b1\u03c4\u03c6\u03bf\u03c1\u03bc\u03ce\u03bd. \u0397 \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03af\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03cd\u03b8\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c5\u03c0\u03b5\u03bd\u03b8\u03c5\u03bc\u03af\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c5\u03bc\u03b2\u03ac\u03bb\u03bb\u03bf\u03c5\u03bd \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03ad\u03c3\u03bc\u03b5\u03c5\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ce\u03bd \u03b1\u03bd\u03c4\u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2.  \u039f\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03c5\u03bd \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b5\u03b3\u03b3\u03af\u03c3\u03b5\u03b9\u03c2 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03c4\u03b1 \u03c3\u03c5\u03bb\u03bb\u03b5\u03b3\u03cc\u03bc\u03b5\u03bd\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03b1\u03bd\u03c4\u03b9\u03c0\u03c1\u03bf\u03c3\u03c9\u03c0\u03b5\u03cd\u03bf\u03c5\u03bd \u03bc\u03b5 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03bb\u03b7\u03b8\u03c5\u03c3\u03bc\u03cc-\u03c3\u03c4\u03cc\u03c7\u03bf, \u03bf\u03b4\u03b7\u03b3\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c3\u03b5 \u03c0\u03b9\u03bf \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<h2 id=\"h-analyzing-survey-results\"><strong>\u0391\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2<\/strong><\/h2>\n\n\n\n<p>\u0397 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03c4\u03c9\u03bd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bd\u03b1 \u03b1\u03bd\u03c4\u03bb\u03ae\u03c3\u03bf\u03c5\u03bd \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03be\u03b1\u03b3\u03ac\u03b3\u03bf\u03c5\u03bd \u03ad\u03b3\u03ba\u03c5\u03c1\u03b1 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03ac\u03c3\u03bc\u03b1\u03c4\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03c3\u03c5\u03bb\u03bb\u03b5\u03c7\u03b8\u03ad\u03bd\u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1. \u0397 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03be\u03b5\u03ba\u03b9\u03bd\u03ac \u03bc\u03b5 \u03c4\u03bf\u03bd \u03ba\u03b1\u03b8\u03b1\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd, \u03cc\u03c0\u03bf\u03c5 \u03bf\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03b1\u03c6\u03b1\u03b9\u03c1\u03bf\u03cd\u03bd \u03b5\u03bb\u03bb\u03b9\u03c0\u03b5\u03af\u03c2, \u03b4\u03b9\u03c0\u03bb\u03ad\u03c2 \u03ae \u03b1\u03c3\u03c5\u03bd\u03b5\u03c0\u03b5\u03af\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2. \u03a3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03bf\u03c1\u03b3\u03b1\u03bd\u03ce\u03bd\u03bf\u03c5\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b1\u03be\u03b9\u03bd\u03bf\u03bc\u03bf\u03cd\u03bd \u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1, \u03bf\u03bc\u03b1\u03b4\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ad\u03c2 \u03ae \u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03af\u03b5\u03c2. \u03a3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c4\u03b1\u03c4\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03ae \u03c3\u03c4\u03b1\u03c4\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae, \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c3\u03c5\u03c3\u03c7\u03ad\u03c4\u03b9\u03c3\u03b7\u03c2 \u03ae \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c0\u03b1\u03bb\u03b9\u03bd\u03b4\u03c1\u03cc\u03bc\u03b7\u03c3\u03b7\u03c2, \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03b5\u03bd\u03c4\u03bf\u03c0\u03b9\u03c3\u03bc\u03cc \u03bc\u03bf\u03c4\u03af\u03b2\u03c9\u03bd, \u03c3\u03c7\u03ad\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03ac\u03c3\u03b5\u03c9\u03bd \u03c3\u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1.&nbsp;<\/p>\n\n\n\n<p>\u039f\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03cd\u03bf\u03c5\u03bd \u03c4\u03b1 \u03b5\u03c5\u03c1\u03ae\u03bc\u03b1\u03c4\u03b1, \u03b1\u03bd\u03b1\u03b6\u03b7\u03c4\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03b5\u03c5\u03c1\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03bc\u03bf\u03c4\u03af\u03b2\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c4\u03cc\u03c7\u03bf\u03c5\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2. \u0393\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b1\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03b4\u03b9\u03b1\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1, \u03b3\u03c1\u03b1\u03c6\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ae \u03c0\u03af\u03bd\u03b1\u03ba\u03b5\u03c2. \u039f\u03b9 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03af \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b9\u03b8\u03b1\u03bd\u03ad\u03c2 \u03c0\u03c1\u03bf\u03ba\u03b1\u03c4\u03b1\u03bb\u03ae\u03c8\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03bc\u03b9\u03b1\u03c2 \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03c9\u03bc\u03ad\u03bd\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03bf\u03cd\u03c2 \u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1\u03c2. \u039c\u03ad\u03c3\u03c9 \u03c4\u03b7\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03c3\u03c4\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03c4\u03c9\u03bd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd, \u03bf\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03c0\u03bf\u03ba\u03c4\u03ae\u03c3\u03bf\u03c5\u03bd \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03b5\u03c2 \u03b3\u03bd\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03bd\u03b7\u03bc\u03b5\u03c1\u03ce\u03bd\u03bf\u03c5\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bb\u03ae\u03c8\u03b7 \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03c9\u03bd, \u03c5\u03c0\u03bf\u03c3\u03c4\u03b7\u03c1\u03af\u03b6\u03bf\u03c5\u03bd \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c3\u03c4\u03cc\u03c7\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bc\u03b2\u03ac\u03bb\u03bb\u03bf\u03c5\u03bd \u03c3\u03c4\u03b7\u03bd \u03c0\u03c1\u03cc\u03bf\u03b4\u03bf \u03c4\u03b7\u03c2 \u03b3\u03bd\u03ce\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03bf\u03c5\u03c2 \u03c4\u03bf\u03bc\u03b5\u03af\u03c2.<\/p>\n\n\n\n<h2 id=\"h-using-appropriate-response-scales\"><strong>\u03a7\u03c1\u03ae\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03c9\u03bd \u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03bd \u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2<\/strong><\/h2>\n\n\n\n<p>\u0397 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03c9\u03bd \u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b7 \u03c0\u03c4\u03c5\u03c7\u03ae \u03c4\u03c9\u03bd \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03c9\u03bd \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03b9 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03bc\u03b5 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03cc\u03c8\u03b5\u03b9\u03c2 \u03ae \u03c4\u03b9\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b5\u03c2 \u03c4\u03bf\u03c5\u03c2. \u0397 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03b7\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b1\u03c2 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b7 \u03c6\u03cd\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bc\u03b5\u03bd\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03ad\u03c1\u03b5\u03b9\u03b1\u03c2. \u039f\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03b5\u03b9\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2 \u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2 Likert, \u03c3\u03b7\u03bc\u03b1\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b9\u03ba\u03ad\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2 \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7\u03c2. \u039f\u03b9 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2 Likert \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1 \u03b5\u03cd\u03c1\u03bf\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ce\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2, \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03ba\u03c5\u03bc\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \"\u03c3\u03c5\u03bc\u03c6\u03c9\u03bd\u03ce \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b1\" \u03ad\u03c9\u03c2 \u03c4\u03bf \"\u03b4\u03b9\u03b1\u03c6\u03c9\u03bd\u03ce \u03b1\u03c0\u03cc\u03bb\u03c5\u03c4\u03b1\", \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03c5\u03c2 \u03bd\u03b1 \u03b5\u03ba\u03c6\u03c1\u03ac\u03c3\u03bf\u03c5\u03bd \u03c4\u03bf \u03b2\u03b1\u03b8\u03bc\u03cc \u03c3\u03c5\u03bc\u03c6\u03c9\u03bd\u03af\u03b1\u03c2 \u03ae \u03b4\u03b9\u03b1\u03c6\u03c9\u03bd\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5\u03c2. \u039f\u03b9 \u03c3\u03b7\u03bc\u03b1\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b9\u03ba\u03ad\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03b4\u03b9\u03c0\u03bf\u03bb\u03b9\u03ba\u03ac \u03b5\u03c0\u03af\u03b8\u03b5\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c3\u03c4\u03ac\u03c3\u03b5\u03c9\u03bd \u03ae \u03b1\u03bd\u03c4\u03b9\u03bb\u03ae\u03c8\u03b5\u03c9\u03bd, \u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03bd\u03b1 \u03b4\u03b7\u03bb\u03ce\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7 \u03b8\u03ad\u03c3\u03b7 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c7\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03b1\u03bd\u03c4\u03b9\u03c4\u03b9\u03b8\u03ad\u03bc\u03b5\u03bd\u03c9\u03bd \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd. \u039f\u03b9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2 \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7\u03c2 \u03b1\u03c0\u03bf\u03b4\u03af\u03b4\u03bf\u03c5\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03c4\u03c5\u03c7\u03ae\u03c2 \u03ae \u03c4\u03b7\u03bd \u03ad\u03bd\u03b4\u03b5\u03b9\u03be\u03b7 \u03b9\u03ba\u03b1\u03bd\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03b7 \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03b1\u03c0\u03cc \u03c4\u03bf 1 \u03ad\u03c9\u03c2 \u03c4\u03bf 10.&nbsp;<\/p>\n\n\n\n<p>\u0395\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03bb\u03b7\u03c6\u03b8\u03b5\u03af \u03c5\u03c0\u03cc\u03c8\u03b7 \u03b7 \u03b3\u03bd\u03c9\u03c3\u03c4\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03c3\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03b7\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b1\u03c2 \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2. \u039c\u03b9\u03b1 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03b7\u03bc\u03ad\u03bd\u03b7 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b1 \u03bc\u03b5 \u03af\u03c3\u03bf \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc \u03b8\u03b5\u03c4\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ce\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ce\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03b9\u03ac\u03c3\u03b5\u03b9 \u03c4\u03b7 \u03bc\u03b5\u03c1\u03bf\u03bb\u03b7\u03c8\u03af\u03b1 \u03c4\u03c9\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd. \u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03b7 \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03bc\u03b9\u03b1\u03c2 \u03bf\u03c5\u03b4\u03ad\u03c4\u03b5\u03c1\u03b7\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2 \u03ae \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2 \"\u03b4\u03b5\u03bd \u03b9\u03c3\u03c7\u03cd\u03b5\u03b9\" \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bb\u03ac\u03b2\u03b5\u03b9 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03c4\u03b9\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03cc\u03c0\u03bf\u03c5 \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03b4\u03b5\u03bd \u03ad\u03c7\u03bf\u03c5\u03bd \u03ac\u03c0\u03bf\u03c8\u03b7 \u03ae \u03b7 \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03b4\u03b5\u03bd \u03c4\u03bf\u03c5\u03c2 \u03b1\u03c6\u03bf\u03c1\u03ac. \u039c\u03b5 \u03c4\u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03c9\u03bd \u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03bd \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2, \u03bf\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c3\u03c5\u03bb\u03bb\u03ad\u03be\u03bf\u03c5\u03bd \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c4\u03c5\u03c0\u03ce\u03bd\u03bf\u03c5\u03bd \u03bc\u03b5 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2, \u03c4\u03b9\u03c2 \u03b1\u03c0\u03cc\u03c8\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b5\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd.&nbsp;<a href=\"https:\/\/cxl.com\/blog\/survey-response-scales\/\">\u039c\u03ac\u03b8\u03b5\u03c4\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2<\/a>.<\/p>\n\n\n\n<h2 id=\"h-rephrasing-yes-no-questions-in-online-surveys\"><strong>\u0391\u03bd\u03b1\u03b4\u03b9\u03b1\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u039d\u03b1\u03b9\/\u038c\u03c7\u03b9 \u03c3\u03b5 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ad\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2<\/strong><\/h2>\n\n\n\n<p>\u0397 \u03b5\u03c0\u03b1\u03bd\u03b1\u03b4\u03b9\u03b1\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u039d\u03b1\u03b9\/\u038c\u03c7\u03b9 \u03c3\u03b5 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ad\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b7 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03c3\u03c4\u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c3\u03ba\u03bf\u03c0\u03b5\u03af \u03c3\u03c4\u03b7 \u03b2\u03b5\u03bb\u03c4\u03af\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03c9\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bb\u03bb\u03bf\u03b3\u03ae \u03c0\u03b9\u03bf \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03c9\u03bd \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03b9\u03ce\u03bd \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b5\u03c2. \u039f\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u039d\u03b1\u03b9\/\u038c\u03c7\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bd \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03c5\u03bd \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03b5\u03c1\u03b5\u03af\u03c2 \u03b5\u03be\u03b7\u03b3\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ae \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c0\u03cc\u03c8\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd. \u039c\u03b5 \u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03b4\u03b9\u03b1\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c3\u03b5 \u03bc\u03bf\u03c1\u03c6\u03ad\u03c2 \u03b1\u03bd\u03bf\u03b9\u03ba\u03c4\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5 \u03ae \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ce\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ce\u03bd, \u03bf\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b5\u03bd\u03b8\u03b1\u03c1\u03c1\u03cd\u03bd\u03bf\u03c5\u03bd \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b5\u03c2 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03c0\u03b9\u03bf \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03b5\u03c1\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c4\u03bf\u03c0\u03b9\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2.&nbsp;<\/p>\n\n\n\n<p>\u039f\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b1\u03bd\u03bf\u03b9\u03ba\u03c4\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03c5\u03bd \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03bd\u03b1 \u03b5\u03ba\u03c6\u03c1\u03ac\u03c3\u03bf\u03c5\u03bd \u03c4\u03b9\u03c2 \u03c3\u03ba\u03ad\u03c8\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03c4\u03b1 \u03b4\u03b9\u03ba\u03ac \u03c4\u03bf\u03c5\u03c2 \u03bb\u03cc\u03b3\u03b9\u03b1, \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c0\u03bb\u03bf\u03c5\u03c3\u03b9\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03ac \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1. \u039f\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ae\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03bc\u03b9\u03b1 \u03c3\u03b5\u03b9\u03c1\u03ac \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ce\u03bd \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c4\u03c5\u03c0\u03ce\u03bd\u03bf\u03c5\u03bd \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03c4\u03bf \u03c6\u03ac\u03c3\u03bc\u03b1 \u03c4\u03c9\u03bd \u03b1\u03c0\u03cc\u03c8\u03b5\u03c9\u03bd, \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ad\u03c3\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1. \u0397 \u03b1\u03bd\u03b1\u03b4\u03b9\u03b1\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u039d\u03b1\u03b9\/\u038c\u03c7\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ad\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03cc\u03c7\u03b9 \u03bc\u03cc\u03bd\u03bf \u03b5\u03bd\u03b8\u03b1\u03c1\u03c1\u03cd\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03c4\u03c9\u03bd \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03b5\u03c7\u03cc\u03bd\u03c4\u03c9\u03bd, \u03b1\u03bb\u03bb\u03ac \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bc\u03b9\u03b1 \u03c0\u03b9\u03bf \u03bf\u03bb\u03bf\u03ba\u03bb\u03b7\u03c1\u03c9\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03c1\u03bf\u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03c9\u03bd \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03b5\u03c7\u03cc\u03bd\u03c4\u03c9\u03bd, \u03bf\u03b4\u03b7\u03b3\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c3\u03b5 \u03c0\u03b9\u03bf \u03b9\u03c3\u03c7\u03c5\u03c1\u03ac \u03ba\u03b1\u03b9 \u03b4\u03b9\u03bf\u03c1\u03b1\u03c4\u03b9\u03ba\u03ac \u03b5\u03c5\u03c1\u03ae\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<h2 id=\"h-starting-with-straightforward-questions\"><strong>\u039e\u03b5\u03ba\u03b9\u03bd\u03ce\u03bd\u03c4\u03b1\u03c2 \u03bc\u03b5 \u03b1\u03c0\u03bb\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2<\/strong><\/h2>\n\n\n\n<p>\u039f\u03b9 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03b1\u03b9\u03c3\u03b8\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c0\u03b9\u03bf \u03ac\u03bd\u03b5\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03bc\u03b5 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c5\u03c4\u03bf\u03c0\u03b5\u03c0\u03bf\u03af\u03b8\u03b7\u03c3\u03b7 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03cc\u03c4\u03b1\u03bd \u03b7 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03be\u03b5\u03ba\u03b9\u03bd\u03ac \u03bc\u03b5 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ce\u03bd\u03c4\u03b1\u03b9 \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bd \u03b1\u03c0\u03b5\u03b9\u03bb\u03bf\u03cd\u03bd. \u039f\u03b9 \u03b1\u03c0\u03bb\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b1\u03c6\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bc\u03b2\u03ac\u03bb\u03bb\u03bf\u03c5\u03bd \u03c3\u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b8\u03b5\u03c4\u03b9\u03ba\u03bf\u03cd \u03c4\u03cc\u03bd\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03bd\u03ac\u03c0\u03c4\u03c5\u03be\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03ad\u03c3\u03bc\u03b5\u03c5\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae. \u0397 \u03ad\u03bd\u03b1\u03c1\u03be\u03b7 \u03bc\u03b5 \u03b1\u03c0\u03bb\u03ad\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b2\u03bf\u03b7\u03b8\u03ac \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03c1\u03c5\u03b8\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03bc\u03b9\u03b1\u03c2 \u03c1\u03bf\u03ae\u03c2 \u03c3\u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1, \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b5\u03c2 \u03bd\u03b1 \u03b4\u03b9\u03b5\u03c5\u03ba\u03bf\u03bb\u03c5\u03bd\u03b8\u03bf\u03cd\u03bd \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b1\u03b9\u03c3\u03b8\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03b3\u03ba\u03bb\u03bf\u03bd\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9.&nbsp;<\/p>\n\n\n\n<p>\u0397 \u03c3\u03c4\u03b1\u03b4\u03b9\u03b1\u03ba\u03ae \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03bf\u03bb\u03c5\u03c0\u03bb\u03bf\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03c0\u03c1\u03cc\u03bf\u03b4\u03bf \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03b5\u03c0\u03b9\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03bd\u03b1 \u03b5\u03b3\u03ba\u03bb\u03b9\u03bc\u03b1\u03c4\u03b9\u03c3\u03c4\u03bf\u03cd\u03bd \u03c3\u03b5 \u03c0\u03b9\u03bf \u03b5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c3\u03c4\u03b1\u03c4\u03c9\u03bc\u03ad\u03bd\u03b1 \u03ae \u03b1\u03c0\u03b1\u03b9\u03c4\u03b7\u03c4\u03b9\u03ba\u03ac \u03b8\u03ad\u03bc\u03b1\u03c4\u03b1. \u0391\u03c5\u03c4\u03cc \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03b4\u03b5\u03bd \u03b1\u03c0\u03bf\u03b8\u03b1\u03c1\u03c1\u03cd\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ae \u03b4\u03b5\u03bd \u03ba\u03bf\u03c5\u03c1\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03bc\u03ad\u03c3\u03c9\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03b5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2, \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03ad\u03c4\u03c3\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b9\u03b8\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bf\u03bb\u03bf\u03ba\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2. \u0397 \u03c0\u03c1\u03bf\u03c4\u03b5\u03c1\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03c4\u03b7 \u03c3\u03b1\u03c6\u03ae\u03bd\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ce\u03bd \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03ba\u03bb\u03b5\u03b9\u03b4\u03af \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03bc\u03b9\u03b1\u03c2 \u03b8\u03b5\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1\u03c2 \u03c3\u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03bc\u03b5\u03b3\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03c9\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9.<\/p>\n\n\n\n<h2 id=\"h-using-unbalanced-scales-with-care\"><strong>\u03a7\u03c1\u03ae\u03c3\u03b7 \u03bc\u03b7 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03b7\u03bc\u03ad\u03bd\u03c9\u03bd \u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03bd \u03bc\u03b5 \u03c0\u03c1\u03bf\u03c3\u03bf\u03c7\u03ae<\/strong><\/h2>\n\n\n\n<p>\u0397 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03bc\u03b7 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03b7\u03bc\u03ad\u03bd\u03c9\u03bd \u03ba\u03bb\u03b9\u03bc\u03ac\u03ba\u03c9\u03bd \u03c3\u03c4\u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ae \u03b5\u03be\u03ad\u03c4\u03b1\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03b7 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c3\u03c5\u03bb\u03bb\u03bf\u03b3\u03ae \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd. \u0395\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03c4\u03bf\u03cd\u03bd \u03bc\u03b5 \u03c3\u03b1\u03c6\u03ae\u03bd\u03b5\u03b9\u03b1 \u03c4\u03b1 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03c3\u03b7\u03bc\u03b5\u03af\u03b1 \u03c4\u03b7\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03cc\u03c4\u03b9 \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf \u03b5\u03c0\u03b9\u03b4\u03b9\u03c9\u03ba\u03cc\u03bc\u03b5\u03bd\u03bf \u03bd\u03cc\u03b7\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf \u03c4\u03b7\u03c2 \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2. \u039f\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03bf\u03af \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c0\u03b9\u03b8\u03b1\u03bd\u03ad\u03c2 \u03bc\u03b5\u03c1\u03bf\u03bb\u03b7\u03c8\u03af\u03b5\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03cd\u03c8\u03bf\u03c5\u03bd \u03b1\u03c0\u03cc \u03bc\u03b7 \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03b7\u03bc\u03ad\u03bd\u03b5\u03c2 \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03b1\u03ba\u03c1\u03b1\u03af\u03b5\u03c2 \u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ae \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03b9\u03b1\u03c3\u03c4\u03bf\u03cd\u03bd \u03b1\u03c5\u03c4\u03bf\u03af \u03bf\u03b9 \u03ba\u03af\u03bd\u03b4\u03c5\u03bd\u03bf\u03b9, \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ac\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b1\u03c6\u03b5\u03af\u03c2 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03b1\u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03c5\u03c2, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b5\u03bd\u03b1\u03bb\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ae \u03ba\u03bb\u03af\u03bc\u03b1\u03ba\u03b5\u03c2, \u03cc\u03c4\u03b1\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03bf.<\/p>\n\n\n\n<h2 id=\"h-adding-incentives\"><strong>\u03a0\u03c1\u03bf\u03c3\u03b8\u03ae\u03ba\u03b7 \u03ba\u03b9\u03bd\u03ae\u03c4\u03c1\u03c9\u03bd<\/strong><\/h2>\n\n\n\n<p>\u0397 \u03c0\u03c1\u03bf\u03c3\u03b8\u03ae\u03ba\u03b7 \u03ba\u03b9\u03bd\u03ae\u03c4\u03c1\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ae \u03c3\u03c4\u03b9\u03c2 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b5\u03c2 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03bd\u03b8\u03ac\u03c1\u03c1\u03c5\u03bd\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b2\u03b5\u03bb\u03c4\u03af\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ce\u03bd \u03b1\u03bd\u03c4\u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2. \u03a4\u03b1 \u03ba\u03af\u03bd\u03b7\u03c4\u03c1\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03bb\u03ac\u03b2\u03bf\u03c5\u03bd \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03bc\u03bf\u03c1\u03c6\u03ad\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03c7\u03c1\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b1\u03bd\u03c4\u03b1\u03bc\u03bf\u03b9\u03b2\u03ad\u03c2, \u03b4\u03c9\u03c1\u03bf\u03ba\u03ac\u03c1\u03c4\u03b5\u03c2, \u03b5\u03ba\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03ae \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03ba\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7. \u039a\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03ba\u03b9\u03bd\u03ae\u03c4\u03c1\u03c9\u03bd, \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03c4\u03b5 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03c4\u03bf \u03ba\u03bf\u03b9\u03bd\u03cc-\u03c3\u03c4\u03cc\u03c7\u03bf \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03b5\u03c4\u03b5 \u03b1\u03bd\u03c4\u03b1\u03bc\u03bf\u03b9\u03b2\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5 \u03b1\u03c5\u03c4\u03cc. \u0397 \u03b1\u03be\u03af\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03b9\u03bd\u03ae\u03c4\u03c1\u03bf\u03c5 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03c7\u03c1\u03cc\u03bd\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03c0\u03ac\u03b8\u03b5\u03b9\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03c0\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2.&nbsp;<\/p>\n\n\n\n<p>\u0398\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c3\u03b1\u03c6\u03ae\u03c2 \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03af\u03b1 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf \u03ba\u03af\u03bd\u03b7\u03c4\u03c1\u03bf \u03c3\u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2, \u03ce\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03c4\u03b5\u03b8\u03bf\u03cd\u03bd \u03bf\u03b9 \u03c0\u03c1\u03bf\u03c3\u03b4\u03bf\u03ba\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03b9\u03bd\u03b7\u03b8\u03bf\u03cd\u03bd \u03bf\u03b9 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae. \u0395\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03cc\u03c4\u03b9 \u03c4\u03bf \u03ba\u03af\u03bd\u03b7\u03c4\u03c1\u03bf \u03b4\u03b5\u03bd \u03bc\u03b5\u03c1\u03bf\u03bb\u03b7\u03c0\u03c4\u03b5\u03af \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bd \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03b5\u03c7\u03cc\u03bd\u03c4\u03c9\u03bd. \u03a4\u03b1 \u03ba\u03af\u03bd\u03b7\u03c4\u03c1\u03b1 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03ad\u03bd\u03b4\u03b5\u03b9\u03be\u03b7 \u03b5\u03ba\u03c4\u03af\u03bc\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03cc\u03c7\u03b9 \u03c9\u03c2 \u03bc\u03ad\u03c3\u03bf \u03b5\u03c0\u03b7\u03c1\u03b5\u03b1\u03c3\u03bc\u03bf\u03cd \u03c4\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03bf\u03c2. \u038c\u03c4\u03b1\u03bd \u03c4\u03b1 \u03ba\u03af\u03bd\u03b7\u03c4\u03c1\u03b1 \u03b5\u03bd\u03c3\u03c9\u03bc\u03b1\u03c4\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac, \u03bf\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03c5\u03be\u03ae\u03c3\u03bf\u03c5\u03bd \u03c4\u03b1 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ac \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c3\u03c5\u03bb\u03bb\u03ad\u03be\u03bf\u03c5\u03bd \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03b5\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03b9\u03bf \u03c0\u03bf\u03b9\u03ba\u03b9\u03bb\u03cc\u03bc\u03bf\u03c1\u03c6\u03b7 \u03bf\u03bc\u03ac\u03b4\u03b1 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd.<\/p>\n\n\n\n<h2 id=\"h-testing-the-survey\"><strong>\u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2<\/strong><\/h2>\n\n\n\n<p>\u03a0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c3\u03c4\u03bf\u03bb\u03ae \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03c3\u03c4\u03bf \u03ba\u03bf\u03b9\u03bd\u03cc-\u03c3\u03c4\u03cc\u03c7\u03bf, \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03c4\u03b7 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03b5\u03c4\u03b5 \u03b4\u03b9\u03b5\u03be\u03bf\u03b4\u03b9\u03ba\u03ac \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03bd\u03c4\u03bf\u03c0\u03af\u03c3\u03b5\u03c4\u03b5 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03c5\u03c7\u03cc\u03bd \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ae \u03c3\u03c6\u03ac\u03bb\u03bc\u03b1\u03c4\u03b1. \u0397 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b2\u03bf\u03b7\u03b8\u03ac \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03cc\u03c4\u03b9 \u03b7 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03c3\u03c9\u03c3\u03c4\u03ac, \u03cc\u03c4\u03b9 \u03cc\u03bb\u03b5\u03c2 \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b1\u03c6\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03b7\u03c4\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03c1\u03bf\u03ae \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03b9\u03c3\u03b8\u03b7\u03c4\u03b9\u03ba\u03ae.&nbsp;<\/p>\n\n\n\n<p>\u039a\u03b1\u03c4\u03ac \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03c9\u03bd \u03b4\u03bf\u03ba\u03b9\u03bc\u03ce\u03bd, \u03bf\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03c5\u03bd \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03ba\u03ac\u03b8\u03b5 \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7, \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03b1\u03c0\u03ac\u03bd\u03c4\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03c0\u03b1\u03c1\u03ac\u03bb\u03b5\u03b9\u03c8\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03bf\u03c5\u03bd \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03bf\u03c7\u03ae. \u0395\u03af\u03bd\u03b1\u03b9 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03c3\u03b5 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ae\u03b3\u03b7\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03b1\u03c0\u03cc\u03ba\u03c1\u03b9\u03c3\u03b7. \u0397 \u03b4\u03b9\u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c0\u03b9\u03bb\u03bf\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03bc\u03b5 \u03ad\u03bd\u03b1 \u03bc\u03b9\u03ba\u03c1\u03cc \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ac\u03c3\u03c7\u03b5\u03b9 \u03c0\u03bf\u03bb\u03cd\u03c4\u03b9\u03bc\u03b5\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03c3\u03b5\u03b9 \u03c4\u03c5\u03c7\u03cc\u03bd \u03b1\u03bd\u03b1\u03b3\u03ba\u03b1\u03af\u03b5\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2.<\/p>\n\n\n\n<h2 id=\"h-using-clear-and-concise-language\"><strong>\u03a7\u03c1\u03ae\u03c3\u03b7 \u03c3\u03b1\u03c6\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03bf\u03c0\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b3\u03bb\u03ce\u03c3\u03c3\u03b1\u03c2<\/strong><\/h2>\n\n\n\n<p>\u0397 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c3\u03b1\u03c6\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03bf\u03c0\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b3\u03bb\u03ce\u03c3\u03c3\u03b1\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03b2\u03b1\u03c3\u03b9\u03ba\u03ae \u03c0\u03c4\u03c5\u03c7\u03ae \u03c4\u03c9\u03bd \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03c9\u03bd \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd. \u0395\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03ba\u03bf\u03b9\u03bd\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03bc\u03b5 \u03c3\u03b1\u03c6\u03ae\u03bd\u03b5\u03b9\u03b1, \u03ce\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03bf\u03cd\u03bd \u03bc\u03b5 \u03b1\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u03c4\u03bf \u03c0\u03b5\u03c1\u03b9\u03b5\u03c7\u03cc\u03bc\u03b5\u03bd\u03bf. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c4\u03b5\u03c5\u03c7\u03b8\u03b5\u03af \u03b1\u03c5\u03c4\u03cc, \u03bf\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03ce\u03bd \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03b1\u03c0\u03bb\u03ae \u03ba\u03b1\u03b9 \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03b7\u03c4\u03ae \u03b3\u03bb\u03ce\u03c3\u03c3\u03b1, \u03b1\u03c0\u03bf\u03c6\u03b5\u03cd\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03bf\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03ae \u03c4\u03b7\u03bd \u03c0\u03bf\u03bb\u03cd\u03c0\u03bb\u03bf\u03ba\u03b7 \u03bf\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1.<\/p>\n\n\n\n<p>\u03a3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ac\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03bb\u03cd\u03b5\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03bf\u03bb\u03cd\u03c0\u03bb\u03bf\u03ba\u03b5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c3\u03b5 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1, \u03c0\u03b9\u03bf \u03b5\u03cd\u03c7\u03c1\u03b7\u03c3\u03c4\u03b1 \u03bc\u03ad\u03c1\u03b7 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c6\u03cd\u03b3\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03c3\u03cd\u03b3\u03c7\u03c5\u03c3\u03b7. \u0397 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03b1\u03ba\u03c1\u03b9\u03b2\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7\u03c2 \u03b4\u03b9\u03b1\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 \u03c3\u03c5\u03bc\u03b2\u03ac\u03bb\u03bb\u03b5\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b5\u03be\u03ac\u03bb\u03b5\u03b9\u03c8\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c3\u03ac\u03c6\u03b5\u03b9\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03b5\u03c1\u03c9\u03c4\u03ce\u03bc\u03b5\u03bd\u03bf\u03b9 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b4\u03ce\u03c3\u03bf\u03c5\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2. \u03a3\u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b1\u03c6\u03b5\u03af\u03c2 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2, \u03bf\u03b9 \u03bf\u03c0\u03bf\u03af\u03b5\u03c2 \u03bd\u03b1 \u03b5\u03be\u03b7\u03b3\u03bf\u03cd\u03bd \u03c4\u03bf\u03bd \u03c3\u03ba\u03bf\u03c0\u03cc \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b4\u03bf\u03ba\u03af\u03b5\u03c2 \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd.<\/p>\n\n\n\n<h2 id=\"h-making-the-survey-engaging\"><strong>\u039a\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ae<\/strong><\/h2>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ae\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ae, \u03bf\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b5\u03bd\u03c3\u03c9\u03bc\u03b1\u03c4\u03ce\u03c3\u03bf\u03c5\u03bd \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ad\u03c2. \u03a0\u03c1\u03ce\u03c4\u03bf\u03bd, \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03bf\u03c5\u03bd \u03bc\u03b9\u03b1 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ae \u03ba\u03b1\u03b9 \u03c6\u03b9\u03bb\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03b4\u03b9\u03b5\u03c0\u03b1\u03c6\u03ae \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03bc\u03b5 \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03cc \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03b9\u03c3\u03b8\u03b7\u03c4\u03b9\u03ba\u03ae \u03c0\u03bb\u03bf\u03ae\u03b3\u03b7\u03c3\u03b7. \u0397 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03af\u03bb\u03b7\u03c8\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03c9\u03bd, \u03cc\u03c0\u03c9\u03c2 \u03c1\u03c5\u03b8\u03bc\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac, \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5 \u03ae \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ad\u03c2 drag-and-drop, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1 \u03c0\u03b9\u03bf \u03b4\u03b9\u03b1\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03ba\u03b1\u03b9 \u03b5\u03c5\u03c7\u03ac\u03c1\u03b9\u03c3\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2. \u0397 \u03b5\u03bd\u03c3\u03c9\u03bc\u03ac\u03c4\u03c9\u03c3\u03b7 \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03c9\u03bd \u03c0\u03bf\u03bb\u03c5\u03bc\u03ad\u03c3\u03c9\u03bd, \u03cc\u03c0\u03c9\u03c2 \u03b5\u03b9\u03ba\u03cc\u03bd\u03b5\u03c2 \u03ae \u03b2\u03af\u03bd\u03c4\u03b5\u03bf, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03bd\u03b9\u03c3\u03c7\u03cd\u03c3\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03ad\u03c3\u03bc\u03b5\u03c5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b2\u03bf\u03b7\u03b8\u03ae\u03c3\u03b5\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c3\u03b1\u03c6\u03ae\u03bd\u03b9\u03c3\u03b7 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd \u03ae \u03b5\u03bd\u03bd\u03bf\u03b9\u03ce\u03bd.&nbsp;<\/p>\n\n\n\n<p>\u0393\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03bd\u03b9\u03c3\u03c7\u03cd\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b4\u03ad\u03c3\u03bc\u03b5\u03c5\u03c3\u03b7 \u03c3\u03c4\u03b7\u03bd \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1, \u03bf\u03b9 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b5\u03bd\u03c3\u03c9\u03bc\u03b1\u03c4\u03ce\u03c3\u03bf\u03c5\u03bd \u03b4\u03b5\u03af\u03ba\u03c4\u03b5\u03c2 \u03c0\u03c1\u03bf\u03cc\u03b4\u03bf\u03c5 \u03ae \u03bc\u03c0\u03ac\u03c1\u03b5\u03c2 \u03bf\u03bb\u03bf\u03ba\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03bc\u03b9\u03b1 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03b1\u03af\u03c3\u03b8\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03c1\u03bf\u03cc\u03b4\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03b9\u03bd\u03ae\u03c3\u03bf\u03c5\u03bd \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03b5\u03c2 \u03bd\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03c3\u03bf\u03c5\u03bd. \u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03b4\u03b9\u03b1\u03c3\u03ba\u03b5\u03b4\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b3\u03bb\u03ce\u03c3\u03c3\u03b1\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b7\u03c2 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03c0\u03b9\u03bf \u03b5\u03be\u03b1\u03c4\u03bf\u03bc\u03b9\u03ba\u03b5\u03c5\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ae \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1, \u03c0\u03c1\u03bf\u03c9\u03b8\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03b1\u03c5\u03be\u03b7\u03bc\u03ad\u03bd\u03b7 \u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03bf\u03c7\u03ae \u03c4\u03c9\u03bd \u03b5\u03c1\u03c9\u03c4\u03b7\u03b8\u03ad\u03bd\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd.<\/p>\n\n\n\n<h2 id=\"h-unleash-the-power-of-infographics-with-mind-the-graph\"><strong>\u0391\u03c0\u03b5\u03bb\u03b5\u03c5\u03b8\u03b5\u03c1\u03ce\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03c9\u03bd Infographics \u03bc\u03b5 \u03c4\u03bf Mind the Graph<\/strong><\/h2>\n\n\n\n<p>\u039c\u03b5 <a href=\"https:\/\/mindthegraph.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Mind the Graph<\/a>, \u03bf\u03b9 \u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03bf\u03bd\u03b5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b1\u03c0\u03b5\u03bb\u03b5\u03c5\u03b8\u03b5\u03c1\u03ce\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03c0\u03bf\u03bb\u03cd\u03c0\u03bb\u03bf\u03ba\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b5\u03c2 \u03bc\u03ad\u03c3\u03c9 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd infographics. \u0397 \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03b5\u03c5\u03c1\u03cd \u03c6\u03ac\u03c3\u03bc\u03b1 \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ce\u03bd \u03b1\u03c0\u03b5\u03b9\u03ba\u03bf\u03bd\u03af\u03c3\u03b5\u03c9\u03bd, \u03b3\u03c1\u03b1\u03c6\u03b9\u03ba\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c4\u03cd\u03c0\u03c9\u03bd \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03c4\u03bf\u03cd\u03bd \u03ce\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b1\u03c0\u03bf\u03ba\u03c1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b5\u03c2. \u0395\u03af\u03c4\u03b5 \u03c0\u03c1\u03cc\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b5\u03bd\u03c4\u03c5\u03c0\u03c9\u03c3\u03b9\u03b1\u03ba\u03ce\u03bd \u03b1\u03c6\u03b9\u03c3\u03ce\u03bd, \u03b5\u03bd\u03b7\u03bc\u03b5\u03c1\u03c9\u03c4\u03b9\u03ba\u03ce\u03bd \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03c3\u03b5\u03c9\u03bd \u03ae \u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03b9\u03ba\u03bf\u03cd \u03c0\u03b5\u03c1\u03b9\u03b5\u03c7\u03bf\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c3\u03c4\u03b1 \u03bc\u03ad\u03c3\u03b1 \u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ba\u03ae\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03c3\u03b7\u03c2, \u03c4\u03bf Mind the Graph \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03bf\u03bd\u03b5\u03c2 \u03c4\u03b1 \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03c0\u03cc\u03c1\u03bf\u03c5\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03bf\u03cd\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03c4\u03b1 \u03b5\u03c5\u03c1\u03ae\u03bc\u03b1\u03c4\u03ac \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03c4\u03c1\u03cc\u03c0\u03bf \u03c3\u03c5\u03bd\u03b1\u03c1\u03c0\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc.<\/p>\n\n\n\n<div style=\"height:21px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/mindthegraph.com\"><img decoding=\"async\" loading=\"lazy\" width=\"800\" height=\"500\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/05\/banco.gif\" alt=\"\" class=\"wp-image-28087\"\/><\/a><\/figure><\/div>\n\n\n<div style=\"height:21px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"is-layout-flex wp-block-buttons\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/mindthegraph.com\/\" style=\"border-radius:50px;background-color:#dc1866\" target=\"_blank\" rel=\"noreferrer noopener\">\u039e\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03c4\u03b5 \u03bc\u03b5 \u03c4\u03bf Mind the Graph<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:44px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>","protected":false},"excerpt":{"rendered":"<p>\u0391\u03c0\u03bf\u03ba\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b9\u03bc\u03b5\u03c2 \u03b3\u03bd\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03bf\u03bb\u03c5\u03c0\u03bb\u03bf\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03bc\u03b5\u03c4\u03c1\u03b9\u03bf\u03c0\u03b1\u03b8\u03ce\u03bd \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ce\u03bd. \u039a\u03b1\u03c4\u03b1\u03bd\u03bf\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03bd\u03af\u03c3\u03c7\u03c5\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03ce\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03c0\u03b1\u03b3\u03ba\u03bf\u03c3\u03bc\u03af\u03c9\u03c2.<\/p>","protected":false},"author":35,"featured_media":29508,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Survey Design Best Practices for Reliable Results - Mind the Graph Blog<\/title>\n<meta name=\"description\" content=\"Design your survey strategy like the experts! Learn the survey design best practices and shape a winning survey strategy!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/el\/survey-design-best-practices\/\" \/>\n<meta property=\"og:locale\" content=\"el_GR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Survey Design Best Practices for Reliable Results\" \/>\n<meta property=\"og:description\" content=\"Design your survey strategy like the experts! Learn the survey design best practices and shape a winning survey strategy!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mindthegraph.com\/blog\/el\/survey-design-best-practices\/\" \/>\n<meta property=\"og:site_name\" content=\"Mind the Graph Blog\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-16T18:35:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-13T18:43:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/09\/survey-design-best-practices-blog.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1124\" \/>\n\t<meta property=\"og:image:height\" content=\"613\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Ang\u00e9lica Salom\u00e3o\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Survey Design Best Practices for Reliable Results\" \/>\n<meta name=\"twitter:description\" content=\"Design your survey strategy like the experts! Learn the survey design best practices and shape a winning survey strategy!\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/09\/survey-design-best-practices-blog.png\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ang\u00e9lica Salom\u00e3o\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Survey Design Best Practices for Reliable Results - Mind the Graph Blog","description":"Design your survey strategy like the experts! Learn the survey design best practices and shape a winning survey strategy!","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mindthegraph.com\/blog\/el\/survey-design-best-practices\/","og_locale":"el_GR","og_type":"article","og_title":"Survey Design Best Practices for Reliable Results","og_description":"Design your survey strategy like the experts! Learn the survey design best practices and shape a winning survey strategy!","og_url":"https:\/\/mindthegraph.com\/blog\/el\/survey-design-best-practices\/","og_site_name":"Mind the Graph Blog","article_published_time":"2023-09-16T18:35:24+00:00","article_modified_time":"2023-09-13T18:43:37+00:00","og_image":[{"width":1124,"height":613,"url":"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/09\/survey-design-best-practices-blog.png","type":"image\/png"}],"author":"Ang\u00e9lica Salom\u00e3o","twitter_card":"summary_large_image","twitter_title":"Survey Design Best Practices for Reliable Results","twitter_description":"Design your survey strategy like the experts! Learn the survey design best practices and shape a winning survey strategy!","twitter_image":"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/09\/survey-design-best-practices-blog.png","twitter_misc":{"Written by":"Ang\u00e9lica Salom\u00e3o","Est. reading time":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mindthegraph.com\/blog\/ru\/survey-design-best-practices\/","url":"https:\/\/mindthegraph.com\/blog\/ru\/survey-design-best-practices\/","name":"Survey Design Best Practices for Reliable Results - Mind the Graph Blog","isPartOf":{"@id":"https:\/\/mindthegraph.com\/blog\/#website"},"datePublished":"2023-09-16T18:35:24+00:00","dateModified":"2023-09-13T18:43:37+00:00","author":{"@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/542e3620319366708346388407c01c0a"},"description":"Design your survey strategy like the experts! Learn the survey design best practices and shape a winning survey strategy!","breadcrumb":{"@id":"https:\/\/mindthegraph.com\/blog\/ru\/survey-design-best-practices\/#breadcrumb"},"inLanguage":"el","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mindthegraph.com\/blog\/ru\/survey-design-best-practices\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/mindthegraph.com\/blog\/ru\/survey-design-best-practices\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/mindthegraph.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Survey Design Best Practices for Reliable Results"}]},{"@type":"WebSite","@id":"https:\/\/mindthegraph.com\/blog\/#website","url":"https:\/\/mindthegraph.com\/blog\/","name":"Mind the Graph Blog","description":"Your science can be beautiful!","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mindthegraph.com\/blog\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"el"},{"@type":"Person","@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/542e3620319366708346388407c01c0a","name":"Ang\u00e9lica Salom\u00e3o","image":{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/a59218eda57fb51e0d7aea836e593cd1?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a59218eda57fb51e0d7aea836e593cd1?s=96&d=mm&r=g","caption":"Ang\u00e9lica Salom\u00e3o"},"url":"https:\/\/mindthegraph.com\/blog\/el\/author\/angelica\/"}]}},"_links":{"self":[{"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/posts\/29506"}],"collection":[{"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/users\/35"}],"replies":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/comments?post=29506"}],"version-history":[{"count":3,"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/posts\/29506\/revisions"}],"predecessor-version":[{"id":29516,"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/posts\/29506\/revisions\/29516"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/media\/29508"}],"wp:attachment":[{"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/media?parent=29506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/categories?post=29506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/el\/wp-json\/wp\/v2\/tags?post=29506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}