{"id":29834,"date":"2023-10-10T15:23:30","date_gmt":"2023-10-10T18:23:30","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/what-is-triangulation-in-research-copy\/"},"modified":"2024-12-05T15:44:14","modified_gmt":"2024-12-05T18:44:14","slug":"quasi-experiment","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/ro\/cvasi-experiment\/","title":{"rendered":"Quasi-experiment: \u00cen\u021belege\u021bi ce este, tipuri \u0219i exemple"},"content":{"rendered":"<p>Proiectele de cercetare cvasi-experimental\u0103 au dob\u00e2ndit o recunoa\u0219tere semnificativ\u0103 \u00een comunitatea \u0219tiin\u021bific\u0103 datorit\u0103 capacit\u0103\u021bii lor unice de a studia rela\u021biile cauz\u0103-efect \u00een contexte reale. Spre deosebire de experimentele adev\u0103rate, cvasi-experimentele nu dispun de repartizarea aleatorie a participan\u021bilor pe grupuri, ceea ce le face mai practice \u0219i mai etice \u00een anumite situa\u021bii. \u00cen acest articol, vom aprofunda conceptul, aplica\u021biile \u0219i avantajele cvasi-experimentelor, arunc\u00e2nd lumin\u0103 asupra relevan\u021bei \u0219i semnifica\u021biei lor \u00een domeniul \u0219tiin\u021bific.<\/p>\n\n\n\n<h2 id=\"h-what-is-a-quasi-experiment-research-design\"><strong>Ce este un design de cercetare cvasi-experiment?<\/strong><\/h2>\n\n\n\n<p>Proiectele de cercetare cvasi-experimental\u0103 sunt metodologii de cercetare care se aseam\u0103n\u0103 cu experimentele adev\u0103rate, dar care nu permit repartizarea aleatorie a participan\u021bilor \u00een grupuri. \u00centr-un experiment adev\u0103rat, cercet\u0103torii repartizeaz\u0103 aleatoriu participan\u021bii fie la un grup experimental, fie la un grup de control, ceea ce permite compararea efectelor unei variabile independente asupra variabilei dependente. Cu toate acestea, \u00een cazul cvasi-experimentelor, aceast\u0103 repartizare aleatorie nu este adesea posibil\u0103 sau permis\u0103 din punct de vedere etic, ceea ce duce la adoptarea unor strategii alternative.<\/p>\n\n\n\n<h2 id=\"h-types-of-quasi-experimental-designs\"><strong>Tipuri de modele cvasi-experimentale<\/strong><\/h2>\n\n\n\n<p>Exist\u0103 mai multe tipuri de modele de cvasi-experimente pentru a studia rela\u021biile cauzale \u00een contexte specifice. Unele tipuri comune includ:<\/p>\n\n\n\n<h3 id=\"h-non-equivalent-groups-design\"><strong>Proiectarea grupurilor neechivalente<\/strong><\/h3>\n\n\n\n<p>Acest model presupune selectarea unor grupuri preexistente care difer\u0103 prin anumite caracteristici cheie \u0219i compararea r\u0103spunsurilor lor la variabila independent\u0103. De\u0219i cercet\u0103torul nu repartizeaz\u0103 grupurile \u00een mod aleatoriu, acesta poate totu\u0219i s\u0103 examineze efectele variabilei independente.<\/p>\n\n\n\n<h3 id=\"h-regression-discontinuity\"><strong>Discontinuitate de regresie<\/strong><\/h3>\n\n\n\n<p>Acest model utilizeaz\u0103 un punct de separare sau un prag pentru a determina ce participan\u021bi primesc tratamentul sau interven\u021bia. Se presupune c\u0103 participan\u021bii afla\u021bi de o parte \u0219i de alta a pragului sunt similari \u00een toate celelalte aspecte, cu excep\u021bia expunerii lor la variabila independent\u0103.<\/p>\n\n\n\n<h3 id=\"h-interrupted-time-series-design\"><strong>Proiectarea seriei de timp \u00eentrerupt\u0103<\/strong><\/h3>\n\n\n\n<p>Acest model presupune m\u0103surarea de mai multe ori a variabilei dependente \u00eenainte \u0219i dup\u0103 introducerea unei interven\u021bii sau a unui tratament. Prin compararea tendin\u021belor variabilei dependente, cercet\u0103torii pot deduce impactul interven\u021biei.<\/p>\n\n\n\n<h3 id=\"h-natural-experiments\"><strong>Experimente naturale<\/strong><\/h3>\n\n\n\n<p>Experimentele naturale profit\u0103 de evenimente sau circumstan\u021be care apar \u00een mod natural \u0219i care imit\u0103 repartizarea aleatorie \u00eent\u00e2lnit\u0103 \u00een experimentele adev\u0103rate. Participan\u021bii sunt expu\u0219i la diferite condi\u021bii \u00een situa\u021bii identificate de cercet\u0103tori, f\u0103r\u0103 nicio manipulare din partea acestora.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/researcher.life\/all-access-pricing?utm_source=mtg&amp;utm_campaign=all-access-promotion&amp;utm_medium=blog\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"410\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-1024x410.png\" alt=\"\" class=\"wp-image-55425\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-1024x410.png 1024w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-300x120.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-768x307.png 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-1536x615.png 1536w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-2048x820.png 2048w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-18x7.png 18w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-100x40.png 100w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2 id=\"h-application-of-the-quasi-experiment-design\"><strong>Aplicarea designului de cvasi-experiment<\/strong><\/h2>\n\n\n\n<p>Proiectele de cercetare cvasi-experimental\u0103 \u00ee\u0219i g\u0103sesc aplica\u021bii \u00een diverse domenii, de la educa\u021bie la s\u0103n\u0103tate public\u0103 \u0219i nu numai. Un avantaj semnificativ al cvasi-experimentelor este fezabilitatea lor \u00een mediile din lumea real\u0103, unde randomizarea nu este \u00eentotdeauna posibil\u0103 sau etic\u0103.<\/p>\n\n\n\n<h2 id=\"h-ethical-reasons\"><strong>Motive etice<\/strong><\/h2>\n\n\n\n<p>Preocup\u0103rile de ordin etic apar adesea \u00een cercetare atunci c\u00e2nd repartizarea aleatorie a participan\u021bilor \u00een grupuri diferite ar putea refuza accesul persoanelor la tratamente sau interven\u021bii benefice. \u00cen astfel de cazuri, modelele cvasi-experimentale ofer\u0103 o alternativ\u0103 etic\u0103, permi\u021b\u00e2nd cercet\u0103torilor s\u0103 studieze impactul interven\u021biilor f\u0103r\u0103 a priva pe cineva de beneficiile poten\u021biale.<\/p>\n\n\n\n<h2 id=\"h-examples-of-quasi-experimental-design\"><strong>Exemple de design cvasi-experimental<\/strong><\/h2>\n\n\n\n<p>S\u0103 explor\u0103m c\u00e2teva exemple de modele cvasi-experimentale pentru a \u00een\u021belege aplicarea lor \u00een diferite contexte.<\/p>\n\n\n\n<h3 id=\"h-design-of-non-equivalent-groups\"><strong>Proiectarea grupurilor neechivalente<\/strong><\/h3>\n\n\n\n<h4 id=\"h-determining-the-effectiveness-of-math-apps-in-supplementing-math-classes\"><strong>Determinarea eficacit\u0103\u021bii aplica\u021biilor de matematic\u0103 \u00een completarea orelor de matematic\u0103<\/strong><\/h4>\n\n\n\n<p>Imagina\u021bi-v\u0103 un studiu care urm\u0103re\u0219te s\u0103 determine eficien\u021ba aplica\u021biilor de matematic\u0103 \u00een completarea orelor tradi\u021bionale de matematic\u0103 \u00eentr-o \u0219coal\u0103. Alocarea aleatorie a elevilor \u00een grupuri diferite ar putea fi nepractic\u0103 sau ar putea perturba structura existent\u0103 a clasei. \u00cen schimb, cercet\u0103torii pot selecta dou\u0103 clase comparabile, una care s\u0103 primeasc\u0103 interven\u021bia aplica\u021biei de matematic\u0103, iar cealalt\u0103 s\u0103 continue cu metodele tradi\u021bionale de predare. Compar\u00e2nd performan\u021bele celor dou\u0103 grupuri, cercet\u0103torii pot trage concluzii cu privire la eficacitatea aplica\u021biei.<\/p>\n\n\n\n<p>Pentru a realiza un studiu cvasi-experiment ca cel men\u021bionat mai sus, cercet\u0103torii pot utiliza <a href=\"https:\/\/www.questionpro.com\/us\">QuestionPro<\/a>, o platform\u0103 de cercetare avansat\u0103 care ofer\u0103 instrumente complete de sondaj \u0219i de analiz\u0103 a datelor. Cu QuestionPro, cercet\u0103torii pot proiecta sondaje pentru a colecta date, a analiza rezultatele \u0219i a ob\u021bine informa\u021bii valoroase pentru cercet\u0103rile lor cvasi-experimentale.<\/p>\n\n\n\n<h4 id=\"h-how-questionpro-helps-in-quasi-experimental-research\"><strong>Cum ajut\u0103 QuestionPro \u00een cercetarea cvasi-experimental\u0103?<\/strong><\/h4>\n\n\n\n<p>Caracteristicile puternice ale QuestionPro, cum ar fi alocarea aleatorie a participan\u021bilor, ramificarea sondajului \u0219i vizualizarea datelor, permit cercet\u0103torilor s\u0103 efectueze \u0219i s\u0103 analizeze \u00een mod eficient studii cvasi-experimentale. Platforma ofer\u0103 o interfa\u021b\u0103 u\u0219or de utilizat \u0219i capacit\u0103\u021bi robuste de raportare, permi\u021b\u00e2nd cercet\u0103torilor s\u0103 colecteze date, s\u0103 exploreze rela\u021bii \u0219i s\u0103 trag\u0103 concluzii semnificative.<\/p>\n\n\n\n<h3 id=\"h-natural-experiments-1\"><strong>Experimente naturale<\/strong><\/h3>\n\n\n\n<p>\u00cen unele cazuri, cercet\u0103torii pot profita de experimentele naturale pentru a examina rela\u021biile de cauzalitate.&nbsp;<\/p>\n\n\n\n<h4 id=\"h-determining-the-effectiveness-of-teaching-modern-leadership-techniques-in-start-up-businesses\"><strong>Determinarea eficacit\u0103\u021bii pred\u0103rii tehnicilor moderne de conducere \u00een \u00eentreprinderile nou-\u00eenfiin\u021bate<\/strong><\/h4>\n\n\n\n<p>Lua\u021bi \u00een considerare un studiu de evaluare a eficacit\u0103\u021bii pred\u0103rii tehnicilor moderne de conducere \u00een \u00eentreprinderile nou \u00eenfiin\u021bate. \u00cen loc s\u0103 repartizeze \u00een mod artificial \u00eentreprinderile \u00een grupuri diferite, cercet\u0103torii le pot observa pe cele care adopt\u0103 \u00een mod natural tehnici moderne de conducere \u0219i pot compara rezultatele acestora cu cele ale \u00eentreprinderilor care nu au implementat astfel de practici.<\/p>\n\n\n\n<h2 id=\"h-advantages-and-disadvantages-of-the-quasi-experimental-design\"><strong>Avantaje \u0219i dezavantaje ale designului cvasi-experimental<\/strong><\/h2>\n\n\n\n<h3 id=\"h-advantages\"><strong>Avantaje<\/strong><\/h3>\n\n\n\n<p>Proiectele cvasi-experimentale ofer\u0103 mai multe avantaje fa\u021b\u0103 de experimentele adev\u0103rate, ceea ce le face instrumente valoroase \u00een cercetare:<\/p>\n\n\n\n<ol>\n<li><strong>Domeniul de aplicare al cercet\u0103rii<\/strong>: Cvasi-experimentele permit cercet\u0103torilor s\u0103 studieze rela\u021biile cauz\u0103-efect \u00een contexte reale, oferind informa\u021bii valoroase despre fenomene complexe care pot fi dificil de reprodus \u00eentr-un mediu controlat de laborator.<\/li>\n\n\n\n<li><strong>Discontinuitate de regresie<\/strong>: Cercet\u0103torii pot utiliza discontinuitatea regresiei pentru a evalua efectele interven\u021biilor sau tratamentelor atunci c\u00e2nd repartizarea aleatorie nu este fezabil\u0103. Acest design valorific\u0103 datele existente \u0219i pragurile care apar \u00een mod natural pentru a trage concluzii cauzale.<\/li>\n<\/ol>\n\n\n\n<h3 id=\"h-disadvantage\"><strong>Dezavantaj<\/strong><\/h3>\n\n\n\n<p><strong>Lipsa repartiz\u0103rii aleatorii<\/strong>: Proiectele cvasi-experimentale nu dispun de repartizarea aleatorie a participan\u021bilor, ceea ce introduce posibilitatea ca variabilele de confuzie s\u0103 afecteze rezultatele. Cercet\u0103torii trebuie s\u0103 ia \u00een considerare cu aten\u021bie poten\u021bialele explica\u021bii alternative pentru efectele observate.<\/p>\n\n\n\n<h2 id=\"h-what-are-the-different-quasi-experimental-study-designs\"><strong>Care sunt diferitele modele de studii cvasi-experimentale?<\/strong><\/h2>\n\n\n\n<p>Proiectele cvasi-experimentale cuprind diverse abord\u0103ri, inclusiv proiecte de grupuri neechivalente, proiecte de serii temporale \u00eentrerupte \u0219i experimente naturale. Fiecare design ofer\u0103 avantaje \u0219i limit\u0103ri unice, oferind cercet\u0103torilor instrumente versatile pentru a explora rela\u021biile cauzale \u00een diferite contexte.<\/p>\n\n\n\n<h2 id=\"h-example-of-the-natural-experiment-approach\"><strong>Exemplu de abordare a experimentului natural<\/strong><\/h2>\n\n\n\n<p>Cercet\u0103torii interesa\u021bi s\u0103 studieze impactul unei campanii de s\u0103n\u0103tate public\u0103 menite s\u0103 reduc\u0103 rata fumatului pot profita de un experiment natural. Compar\u00e2nd ratele fumatului \u00eentr-o regiune care a implementat campania cu o regiune similar\u0103 care nu a f\u0103cut-o, cercet\u0103torii pot examina eficacitatea interven\u021biei.<\/p>\n\n\n\n<h2 id=\"h-differences-between-quasi-experiments-and-true-experiments\"><strong>Diferen\u021bele dintre cvasi-experimente \u0219i experimentele adev\u0103rate<\/strong><\/h2>\n\n\n\n<p>Cvasi-experimentele \u0219i experimentele adev\u0103rate difer\u0103 \u00een primul r\u00e2nd prin capacitatea lor de a repartiza aleatoriu participan\u021bii pe grupuri. \u00cen timp ce experimentele adev\u0103rate ofer\u0103 un nivel mai ridicat de control, cvasi-experimentele ofer\u0103 alternative practice \u0219i etice \u00een situa\u021biile \u00een care randomizarea nu este fezabil\u0103 sau de dorit.<\/p>\n\n\n\n<h3 id=\"h-example-comparing-a-true-experiment-and-quasi-experiment\"><strong>Exemplu de compara\u021bie \u00eentre un experiment adev\u0103rat \u0219i un cvasi-experiment<\/strong><\/h3>\n\n\n\n<p>\u00centr-un experiment adev\u0103rat care investigheaz\u0103 efectele unui nou medicament asupra unei anumite afec\u021biuni, cercet\u0103torii ar repartiza aleatoriu participan\u021bii fie \u00een grupul experimental, care prime\u0219te medicamentul, fie \u00een grupul de control, care prime\u0219te un placebo. \u00centr-un cvasi-experiment, cercet\u0103torii ar putea, \u00een schimb, s\u0103 compare pacien\u021bii care aleg \u00een mod voluntar s\u0103 ia medicamentul cu cei care nu \u00eel iau, examin\u00e2nd diferen\u021bele de rezultate \u00eentre cele dou\u0103 grupuri.<\/p>\n\n\n\n<h2 id=\"h-quasi-experiment-a-quick-wrap-up\"><strong>Quasi-experiment: O scurt\u0103 recapitulare<\/strong><\/h2>\n\n\n\n<p>Proiectele de cercetare cvasi-experimental\u0103 joac\u0103 un rol vital \u00een ancheta \u0219tiin\u021bific\u0103, permi\u021b\u00e2nd cercet\u0103torilor s\u0103 investigheze rela\u021biile cauz\u0103-efect \u00een contexte reale. Aceste modele ofer\u0103 alternative practice \u0219i etice la experimentele adev\u0103rate, ceea ce le face instrumente valoroase \u00een diverse domenii de studiu. Prin versatilitatea \u0219i aplicabilitatea lor, modelele cvasi-experimentale continu\u0103 s\u0103 contribuie la \u00een\u021belegerea fenomenelor complexe.<\/p>\n\n\n\n<h2 id=\"h-turn-your-data-into-easy-to-understand-and-dynamic-stories\"><strong>Transform\u0103-\u021bi datele \u00een pove\u0219ti dinamice \u0219i u\u0219or de \u00een\u021beles<\/strong><\/h2>\n\n\n\n<p>Atunci c\u00e2nd dori\u021bi s\u0103 explica\u021bi date complexe, este \u00eentotdeauna recomandat s\u0103 le \u00eemp\u0103r\u021bi\u021bi \u00een imagini sau pove\u0219ti mai simple. \u00cen acest caz <a href=\"https:\/\/mindthegraph.com\" target=\"_blank\" rel=\"noreferrer noopener\">Mind the Graph<\/a> intr\u0103 \u00een. Este o platform\u0103 care ajut\u0103 cercet\u0103torii \u0219i oamenii de \u0219tiin\u021b\u0103 s\u0103 transforme datele lor \u00een pove\u0219ti dinamice \u0219i u\u0219or de \u00een\u021beles, ajut\u00e2nd publicul s\u0103 \u00een\u021beleag\u0103 mai bine conceptele. \u00censcrie\u021bi-v\u0103 acum pentru a explora biblioteca de infografice \u0219tiin\u021bifice.&nbsp;<\/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=\"517\" height=\"250\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/03\/illustrations-banner.webp\" alt=\"\" class=\"wp-image-27276\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/03\/illustrations-banner.webp 517w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/03\/illustrations-banner-300x145.webp 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/03\/illustrations-banner-18x9.webp 18w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2023\/03\/illustrations-banner-100x48.webp 100w\" sizes=\"(max-width: 517px) 100vw, 517px\" \/><\/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\">\u00cencepe\u021bi s\u0103 crea\u021bi cu 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>Descoperi\u021bi conceptul de cvasi-experiment, diferitele sale tipuri, exemple din lumea real\u0103 \u0219i modul \u00een care QuestionPro ajut\u0103 la realizarea acestor studii. <\/p>","protected":false},"author":38,"featured_media":29837,"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>Quasi-Experiment: Understand What It Is, Types &amp; 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