{"id":28779,"date":"2023-07-26T06:52:12","date_gmt":"2023-07-26T09:52:12","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/extraneous-variables-copy\/"},"modified":"2024-12-05T15:48:38","modified_gmt":"2024-12-05T18:48:38","slug":"reliability-vs-validity-in-research","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/ro\/fiabilitate-vs-valabilitate-in-cercetare\/","title":{"rendered":"Fiabilitatea vs validitatea \u00een cercetare: M\u0103surarea a ceea ce conteaz\u0103"},"content":{"rendered":"

Cercet\u0103torii trebuie s\u0103 se asigure c\u0103 instrumentele lor de cercetare sunt fiabile \u0219i valide \u00eenainte de a le utiliza pentru a colecta date. Fiabilitatea \u0219i validitatea datelor sunt dou\u0103 concepte importante \u00een cercetare care sunt utilizate pentru a evalua calitatea datelor colectate. At\u00e2t fiabilitatea, c\u00e2t \u0219i validitatea datelor sunt cruciale \u00een cercetare, deoarece asigur\u0103 c\u0103 rezultatele ob\u021binute sunt exacte, consecvente \u0219i demne de \u00eencredere.<\/p>\n\n\n\n

Fiabilitate vs. validitate \u00een cercetare<\/h2>\n\n\n\n

Fiabilitate<\/strong> se refer\u0103 la consisten\u021ba sau stabilitatea unei m\u0103sur\u0103tori \u00een timp sau \u00eentre diferi\u021bi evaluatori. Un instrument de m\u0103surare este considerat fiabil dac\u0103 produce \u00een mod constant acelea\u0219i rezultate atunci c\u00e2nd este utilizat \u00een mod repetat pentru a m\u0103sura acela\u0219i lucru. Cu alte cuvinte, este un instrument fiabil care produce rezultate constante, indiferent de cine \u00eel administreaz\u0103, c\u00e2nd este administrat \u0219i \u00een ce condi\u021bii este administrat.<\/p>\n\n\n\n

Validitate<\/strong> se refer\u0103 la m\u0103sura \u00een care un instrument de m\u0103surare m\u0103soar\u0103 ceea ce ar trebui s\u0103 m\u0103soare. Un instrument de m\u0103surare este considerat valid dac\u0103 m\u0103soar\u0103 cu exactitate conceptul sau constructele pe care este menit s\u0103 le m\u0103soare. Cu alte cuvinte, este un instrument valid care m\u0103soar\u0103 ceea ce pretinde c\u0103 m\u0103soar\u0103 \u0219i produce rezultate care sunt semnificative \u0219i relevante pentru \u00eentrebarea de cercetare.<\/p>\n\n\n\n

Pe scurt, fiabilitatea se refer\u0103 la consisten\u021ba unei m\u0103sur\u0103tori, \u00een timp ce validitatea se refer\u0103 la acurate\u021bea sau veridicitatea unei m\u0103sur\u0103tori. \u00cen timp ce fiabilitatea este important\u0103 pentru a asigura consecven\u021ba \u0219i stabilitatea rezultatelor, validitatea este crucial\u0103 pentru a se asigura c\u0103 rezultatele ob\u021binute de la un instrument de m\u0103surare sunt semnificative \u0219i relevante pentru \u00eentrebarea de cercetare.<\/p>\n\n\n\n

Acest tabel ofer\u0103 o referin\u021b\u0103 rapid\u0103 pentru fiabilitate vs. validitate \u00een cercetare:<\/p>\n\n\n\n

<\/div>\n\n\n\n
Criterii<\/strong><\/th>Fiabilitate<\/strong><\/th>Validitate<\/strong><\/th><\/tr><\/thead>
Defini\u021bie<\/td>Gradul \u00een care o m\u0103sur\u0103 produce \u00een mod constant acelea\u0219i rezultate \u00een timp \u0219i \u00een e\u0219antioane diferite.<\/td>Gradul \u00een care o m\u0103sur\u0103toare m\u0103soar\u0103 cu exactitate ceea ce trebuie s\u0103 m\u0103soare.<\/td><\/tr>
Tipuri<\/td>Fiabilitatea test-retest, fiabilitatea inter-rater, fiabilitatea consisten\u021bei interne.<\/td>Validitatea de con\u021binut, validitatea de criteriu \u0219i validitatea de construc\u021bie.<\/td><\/tr>
Exemplu<\/td>Verificarea efectului unui medicament asupra tensiunii arteriale poate fi m\u0103surat\u0103 prin verificarea dac\u0103 valorile tensiunii arteriale m\u0103surate la momente diferite sunt \u00een concordan\u021b\u0103 una cu cealalt\u0103.<\/td>Un sondaj care m\u0103soar\u0103 cu precizie satisfac\u021bia profesional\u0103.<\/td><\/tr>
Importan\u021b\u0103<\/td>Important pentru ob\u021binerea unor rezultate consecvente \u0219i pentru reducerea erorilor de m\u0103surare.<\/td>Important pentru a asigura validitatea unei m\u0103suri.<\/td><\/tr>
Obiectiv<\/td>Pentru a se asigura c\u0103 un instrument de m\u0103surare produce rezultate coerente.<\/td>Pentru a se asigura c\u0103 un instrument de m\u0103surare produce rezultate precise.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/div>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n

Ce este Fiabilitatea?<\/strong><\/h2>\n\n\n\n

Fiabilitatea datelor se refer\u0103 la m\u0103sura \u00een care rezultatele unui studiu pot fi reproduse. Ea se refer\u0103 la consecven\u021ba \u0219i stabilitatea rezultatelor ob\u021binute dintr-un instrument de cercetare, cum ar fi un sondaj sau un chestionar. Dac\u0103 un instrument de cercetare este fiabil, acesta ar trebui s\u0103 produc\u0103 rezultate consecvente atunci c\u00e2nd este administrat de mai multe ori aceluia\u0219i grup de participan\u021bi.<\/p>\n\n\n\n

Ce este validitatea?<\/strong><\/h2>\n\n\n\n

Validitatea datelor se refer\u0103 la acurate\u021bea rezultatelor ob\u021binute \u00een urma unui instrument de cercetare. Aceasta se refer\u0103 la m\u0103sura \u00een care un instrument de cercetare m\u0103soar\u0103 ceea ce se inten\u021bioneaz\u0103 s\u0103 m\u0103soare. Cu alte cuvinte, dac\u0103 un instrument de cercetare este valid, acesta ar trebui s\u0103 m\u0103soare cu exactitate conceptul sau fenomenul pe care este conceput s\u0103 \u00eel m\u0103soare. Exist\u0103 diferite tipuri de validitate, cum ar fi validitatea nominal\u0103, validitatea de con\u021binut, validitatea de construc\u021bie \u0219i validitatea de criteriu. <\/p>\n\n\n\n

<\/div>\n\n\n
\n
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Via hoganassessments.com<\/a><\/em><\/figcaption><\/figure><\/div>\n\n\n
<\/div>\n\n\n\n

Evaluarea fiabilit\u0103\u021bii \u0219i validit\u0103\u021bii<\/strong><\/h2>\n\n\n\n

Evaluarea fiabilit\u0103\u021bii \u0219i a validit\u0103\u021bii este un proces important \u00een dezvoltarea \u0219i evaluarea oric\u0103rui instrument de cercetare, cum ar fi anchetele, chestionarele sau testele. Fiabilitatea se refer\u0103 la consecven\u021ba sau stabilitatea m\u0103sur\u0103torii \u00een timp sau \u00eentre diferi\u021bi evaluatori, \u00een timp ce validitatea se refer\u0103 la m\u0103sura \u00een care instrumentul m\u0103soar\u0103 ceea ce se presupune c\u0103 m\u0103soar\u0103. \u00cen general, evaluarea fiabilit\u0103\u021bii \u0219i a validit\u0103\u021bii este crucial\u0103 pentru a se asigura c\u0103 instrumentele de cercetare sunt exacte \u0219i produc rezultate consecvente, ceea ce spore\u0219te calitatea \u0219i credibilitatea cercet\u0103rii.<\/p>\n\n\n\n

Fiabilitate<\/strong><\/h3>\n\n\n\n

Exist\u0103 mai multe metode de evaluare a fiabilit\u0103\u021bii, printre care se num\u0103r\u0103 fiabilitatea test-retest, fiabilitatea inter-rater \u0219i fiabilitatea consisten\u021bei interne. Iat\u0103 un exemplu de tabel care arat\u0103 cum poate func\u021biona fiabilitatea \u00een cercetare:<\/p>\n\n\n\n

<\/div>\n\n\n\n
Tipul de fiabilitate<\/strong><\/th>Descriere<\/strong><\/th>Exemplu<\/strong><\/th><\/tr><\/thead>
Fiabilitatea testului-retest<\/td>M\u0103sura \u00een care o m\u0103sur\u0103 produce rezultate consecvente \u00een timp atunci c\u00e2nd este aplicat\u0103 aceluia\u0219i grup de persoane \u00een dou\u0103 sau mai multe ocazii.<\/td>Administrarea unui sondaj unui grup de participan\u021bi \u0219i apoi administrarea aceluia\u0219i sondaj aceluia\u0219i grup de participan\u021bi o s\u0103pt\u0103m\u00e2n\u0103 mai t\u00e2rziu \u0219i compararea rezultatelor.<\/td><\/tr>
Fiabilitatea \u00eentre evaluatori<\/td>M\u0103sura \u00een care evaluatori sau observatori diferi\u021bi produc rezultate coerente atunci c\u00e2nd evalueaz\u0103 sau observ\u0103 acela\u0219i lucru.<\/td>Dou\u0103 sau mai multe persoane care noteaz\u0103 independent acela\u0219i set de eseuri \u0219i le compar\u0103 scorurile pentru a determina dac\u0103 acestea sunt consecvente.<\/td><\/tr>
Consisten\u021ba intern\u0103 Fiabilitatea<\/td>M\u0103sura \u00een care diferi\u021bi itemi sau \u00eentreb\u0103ri din cadrul unei m\u0103suri produc rezultate coerente.<\/td>Calcularea corela\u021biei dintre r\u0103spunsurile la diferi\u021bi itemi dintr-un chestionar conceput pentru a m\u0103sura acela\u0219i construct, cum ar fi stima de sine.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/div>\n\n\n\n

Re\u021bine\u021bi c\u0103 acesta este doar un exemplu de tabel \u0219i c\u0103 exist\u0103 multe alte tipuri de fiabilitate care ar putea fi incluse \u00een func\u021bie de contextul cercet\u0103rii. Important este s\u0103 alege\u021bi tipul (tipurile) de fiabilitate adecvat(e) pentru studiul dvs. \u0219i s\u0103 v\u0103 concepe\u021bi cercetarea \u00eentr-un mod care s\u0103 v\u0103 permit\u0103 s\u0103 evalua\u021bi fiabilitatea \u00een mod eficient.<\/p>\n\n\n\n

Validitate<\/strong><\/h3>\n\n\n\n

Pentru a evalua validitatea, pot fi examinate diferite tipuri de validitate, cum ar fi validitatea de con\u021binut, validitatea de criteriu \u0219i validitatea de construct. Iat\u0103 un exemplu de tabel care arat\u0103 cum poate func\u021biona validitatea \u00een cercetare:<\/p>\n\n\n\n

<\/div>\n\n\n\n
Tipul de validitate<\/strong><\/th>Descriere<\/strong><\/th>Exemplu<\/strong><\/th><\/tr><\/thead>
Validitatea con\u021binutului<\/td>M\u0103sura \u00een care o m\u0103sur\u0103 capteaz\u0103 toate aspectele unui anumit construct.<\/td>Revizuirea unui set de \u00eentreb\u0103ri sau itemi concepu\u021bi pentru a m\u0103sura depresia \u0219i evaluarea faptului c\u0103 ace\u0219tia acoper\u0103 toate aspectele relevante ale depresiei.<\/td><\/tr>
Validitatea criteriului<\/td>M\u0103sura \u00een care o m\u0103sur\u0103 este legat\u0103 de un anumit criteriu sau rezultat.<\/td>Corelarea scorurilor ob\u021binute la o nou\u0103 m\u0103sur\u0103 a abilit\u0103\u021bilor la matematic\u0103 cu scorurile ob\u021binute la un test de matematic\u0103 existent, care este considerat un \"standard de aur\", pentru a evalua c\u00e2t de bine prezice noua m\u0103sur\u0103 performan\u021ba la testul existent.<\/td><\/tr>
Validitatea construc\u021biei<\/td>Se refer\u0103 la gradul \u00een care o m\u0103sur\u0103toare m\u0103soar\u0103 cu acurate\u021be construc\u021bia dorit\u0103.<\/td>Corelarea scorurilor la o m\u0103sur\u0103 a extraversiunii cu alte m\u0103suri ale unor construc\u021bii conexe, cum ar fi activitatea social\u0103 \u0219i comportamentul sociabil, pentru a evalua m\u0103sura \u00een care m\u0103surarea capteaz\u0103 construc\u021bia dorit\u0103.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/div>\n\n\n\n

Integra\u021bi informa\u021biile \u0219i ilustra\u021biile \u00een slide-uri frumoase \u0219i de impact<\/strong><\/h2>\n\n\n\n

Mind the Graph<\/a> este o platform\u0103 care pune la dispozi\u021bia oamenilor de \u0219tiin\u021b\u0103 instrumente pentru a crea diapozitive atractive \u0219i cu impact vizual. Platforma ofer\u0103 o gam\u0103 de figuri atractive din punct de vedere vizual pentru cercet\u0103rile dumneavoastr\u0103, care \u00eei ajut\u0103 pe oamenii de \u0219tiin\u021b\u0103 s\u0103 \u00ee\u0219i organizeze informa\u021biile \u0219i ilustra\u021biile \u00eentr-un mod care este at\u00e2t estetic c\u00e2t \u0219i eficient. Rezultatul final este o prezentare cu aspect profesional care comunic\u0103 eficient informa\u021biile \u0219tiin\u021bifice unui public mai larg. Cu Mind the Graph, oamenii de \u0219tiin\u021b\u0103 pot integra cu u\u0219urin\u021b\u0103 informa\u021biile \u0219i ilustra\u021biile \u00een prezent\u0103ri frumoase \u0219i de impact.<\/p>\n\n\n\n

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\"\"<\/figure><\/div>\n\n\n
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\u00cencepe\u021bi s\u0103 crea\u021bi cu Mind the Graph<\/a><\/div>\n<\/div>\n\n\n\n
<\/div>","protected":false},"excerpt":{"rendered":"

\u00cenv\u0103\u021ba\u021bi despre fiabilitate \u0219i validitate \u00een cercetare cu acest ghid cuprinz\u0103tor. Descoperi\u021bi cum influen\u021beaz\u0103 acestea calitatea cercet\u0103rii dumneavoastr\u0103.<\/p>","protected":false},"author":35,"featured_media":28781,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[],"yoast_head":"\nReliability vs Validity in Research: Measuring What Matters - Mind the Graph Blog<\/title>\n<meta name=\"description\" content=\"Learn about reliability vs validity in research with this comprehensive guide. 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