

{"id":796455,"date":"2022-05-24T12:54:25","date_gmt":"2022-05-24T12:54:25","guid":{"rendered":"https:\/\/www.questionpro.com\/blog\/alt-grup-analizi-nedir-hatalardan-nasil-kacinilir\/"},"modified":"2022-05-24T12:54:25","modified_gmt":"2022-05-24T12:54:25","slug":"alt-grup-analizi-nedir-hatalardan-nasil-kacinilir","status":"publish","type":"post","link":"https:\/\/www.questionpro.com\/blog\/tr\/alt-grup-analizi-nedir-hatalardan-nasil-kacinilir\/","title":{"rendered":"Alt grup analizi: Nedir + Hatalardan nas\u0131l ka\u00e7\u0131n\u0131l\u0131r"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Bir alt grup analizi y\u00fcr\u00fctmenin ilk ad\u0131m\u0131, \u00e7al\u0131\u015fman\u0131za dahil etmek istedi\u011finiz gruplar\u0131 tan\u0131mlamakt\u0131r. Amac\u0131n\u0131z, bu gruplardan herhangi birinin belirli bir hastal\u0131\u011fa yakalanma riskinin di\u011fer gruplara g\u00f6re daha y\u00fcksek olup olmad\u0131\u011f\u0131n\u0131 belirlemektir. \u00d6rne\u011fin, meme kanseri \u00fczerine \u00e7al\u0131\u015f\u0131yorsan\u0131z, daha \u00f6nce ameliyat ge\u00e7irmi\u015f kad\u0131nlar\u0131n ameliyat ge\u00e7irmemi\u015f kad\u0131nlara g\u00f6re daha y\u00fcksek risk alt\u0131nda olup olmad\u0131\u011f\u0131n\u0131 bilmek isteyebilirsiniz.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Alt gruplar\u0131n\u0131z\u0131n ne olaca\u011f\u0131na karar verdikten sonra, s\u0131ra her gruptan veri toplamaya gelir. Hedef kitlenizden bilgi toplamak isteyeceksiniz. Bu, anketler yoluyla veya projeniz s\u0131ras\u0131nda rahats\u0131zl\u0131\u011f\u0131 te\u015fhis edilenlerin t\u0131bbi kay\u0131tlar\u0131n\u0131 toplayarak yap\u0131labilir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hem sa\u011fl\u0131kl\u0131 insanlardan hem de incelenen hastal\u0131\u011fa veya duruma sahip olanlardan veri toplad\u0131ktan sonra, s\u0131ra istatistiksel analize gelir! <a href=\"https:\/\/www.questionpro.com\/blog\/statistical-analysis\/\">\u0130statistiksel analizin<\/a> amac\u0131 iki y\u00f6nl\u00fcd\u00fcr: birincisi, \u00f6rneklem b\u00fcy\u00fckl\u00fc\u011f\u00fcm\u00fczde herhangi bir hata olmad\u0131\u011f\u0131ndan emin olmam\u0131z gerekir; ikincisi, \u00f6rneklemlerimiz aras\u0131nda herhangi bir fark olup olmad\u0131\u011f\u0131n\u0131 g\u00f6rmemiz gerekir (yani, farkl\u0131 \u00f6zelliklere sahip pop\u00fclasyonlar aras\u0131nda farkl\u0131l\u0131klar olup olmad\u0131\u011f\u0131n\u0131).<\/span><\/p>\n<h2><b>Alt grup analizi nedir?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Alt grup analizi, belirli de\u011fi\u015fkenlerin ikincil veri analizinin sonucunu nas\u0131l etkiledi\u011fini g\u00f6rmek i\u00e7in detaya inmenizi sa\u011flayan bir s\u00fcre\u00e7tir. Kat\u0131l\u0131mc\u0131lar \u0131rk, etnik k\u00f6ken, ya\u015f, e\u011fitim veya cinsiyet gibi demografik \u00f6zelliklere g\u00f6re grupland\u0131r\u0131lm\u0131\u015ft\u0131r. Di\u011fer de\u011fi\u015fkenler parti kimli\u011fi, sa\u011fl\u0131k durumu veya belirli durumlara y\u00f6nelik tutumlar olabilir.  <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bir ara\u015ft\u0131rmac\u0131, e\u015fitsizlikleri veya di\u011fer farkl\u0131l\u0131klar\u0131 belirlemek i\u00e7in alt gruplar aras\u0131ndaki de\u011fi\u015fken ortalamalar\u0131 veya da\u011f\u0131l\u0131mlar\u0131ndaki farkl\u0131l\u0131klar\u0131 analiz edebilir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00d6rne\u011fin, insanlar\u0131n bilimsel ara\u015ft\u0131rmalarda hayvanlar\u0131n kullan\u0131m\u0131na y\u00f6nelik tutumlar\u0131 hakk\u0131nda bir anketiniz oldu\u011funu ve bu konudaki g\u00f6r\u00fc\u015flerinde erkekler ve kad\u0131nlar aras\u0131nda herhangi bir fark olup olmad\u0131\u011f\u0131yla ilgilendi\u011finizi varsayal\u0131m.  <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00d6rnekleminizi erkek ve kad\u0131n kat\u0131l\u0131mc\u0131lara b\u00f6lerek ve aralar\u0131nda herhangi bir fark olup olmad\u0131\u011f\u0131n\u0131 g\u00f6rmek i\u00e7in yan\u0131tlar\u0131n\u0131 inceleyerek bir alt grup analizi yapabilirsiniz.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Alt grup analizlerinde (\u00f6rne\u011fin bir m\u00fcdahale veya tedavi), n\u00fcfusun belirli kesimlerinde veya belirli parametreler \u00fczerinde bir fakt\u00f6r\u00fcn sonucunu belirlemeye \u00e7al\u0131\u015f\u0131r\u0131z.&nbsp;<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Alt grup analizi iki t\u00fcr olarak s\u0131n\u0131fland\u0131r\u0131labilir:&nbsp;<\/span><\/h3>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00d6nceden belirlenmi\u015f&nbsp;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Post-hoc.<\/span><\/li>\n<\/ol>\n<h2><b>Hatalardan nas\u0131l ka\u00e7\u0131n\u0131l\u0131r&nbsp;&nbsp;<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Ayn\u0131 veriler \u00fczerinde birden fazla test ger\u00e7ekle\u015ftirmek, b\u00fcy\u00fck \u00f6l\u00e7ekli projelerde yanl\u0131\u015f pozitif sonu\u00e7lara neden olabilir. Baz\u0131 ara\u015ft\u0131rmac\u0131lar\u0131n, \u00f6nyarg\u0131l\u0131 olma e\u011filiminde olduklar\u0131 alt k\u00fcme sonu\u00e7lar\u0131 lehine \u00e7ok say\u0131da s\u0131k\u0131c\u0131 veya tekrarlayan sonucu g\u00f6z ard\u0131 etmeleri m\u00fcmk\u00fcnd\u00fcr.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu \u00f6zellikle, kullan\u0131c\u0131 i\u00e7in yararl\u0131 olmayabilecek \u00e7ok say\u0131da tekrarlayan sonu\u00e7 \u00fcretmek i\u00e7in s\u0131kl\u0131kla kullan\u0131lan makine \u00f6\u011frenimi algoritmalar\u0131yla \u00e7al\u0131\u015f\u0131rken ge\u00e7erlidir. Bu algoritmalar\u0131n \u00e7al\u0131\u015fmas\u0131 i\u00e7in gereken s\u00fcre \u00e7ok uzun olabilir ve bir deney y\u00fcr\u00fctmenin maliyetine dahil edilmelidir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu bir sorundur \u00e7\u00fcnk\u00fc ara\u015ft\u0131rmac\u0131lar\u0131, veri setlerinde var olabilecek di\u011fer olas\u0131l\u0131klar\u0131 veya daha iyi sonu\u00e7lar \u00fcretecek alternatif yakla\u015f\u0131mlar\u0131 dikkate almadan bir yola y\u00f6nlendirebilir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Verilerinizi alt gruplar kullanarak analiz etti\u011finizde, aralar\u0131nda herhangi bir fark olup olmad\u0131\u011f\u0131n\u0131 g\u00f6rmek i\u00e7in daha k\u00fc\u00e7\u00fck gruplara ay\u0131r\u0131rs\u0131n\u0131z.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cinsiyetin belirli bir sonucu nas\u0131l etkiledi\u011fine bakmak istiyorsan\u0131z, \u00e7al\u0131\u015fma \u00f6rnekleminizi kad\u0131n ve erkek olarak ay\u0131rabilir ve ard\u0131ndan yan\u0131tlar\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131rabilirsiniz. Ama her grupta ka\u00e7 ki\u015fi olmal\u0131? Peki ka\u00e7 tane kar\u015f\u0131la\u015ft\u0131rma yapman\u0131z gerekiyor?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Alt gruplar\u0131n hataya yol a\u00e7mas\u0131n\u0131n iki ana nedeni vard\u0131r. \u00d6rneklem b\u00fcy\u00fckl\u00fc\u011f\u00fc \u00e7ok k\u00fc\u00e7\u00fck olabilir ve \u00e7ok fazla kar\u015f\u0131la\u015ft\u0131rma yap\u0131labilir. \u00c7al\u0131\u015fma \u00f6rnekleminizi bir\u00e7ok alt gruba ay\u0131rd\u0131\u011f\u0131n\u0131zda, farkl\u0131l\u0131klar\u0131 tespit etmek veya farkl\u0131l\u0131klar\u0131n sadece bir \u015fans meselesi olmad\u0131\u011f\u0131ndan emin olmak i\u00e7in \u00e7ok az say\u0131da kat\u0131l\u0131mc\u0131ya sahip olabilirsiniz.<\/span><\/p>\n<h2><b>Alt Grup Analizi <\/b>Avantajlar\u0131<\/h2>\n<p><span style=\"font-weight: 400;\">Alt grup analizinin temel avantaj\u0131, ara\u015ft\u0131rmac\u0131lar\u0131n hipotezlerini daha ayr\u0131nt\u0131l\u0131 bir \u015fekilde test etmelerine olanak sa\u011flamas\u0131d\u0131r. \u00d6rne\u011fin, belirli alt gruplar\u0131n di\u011ferlerine g\u00f6re daha iyi yan\u0131t verdi\u011fini veya erkekler ile kad\u0131nlar aras\u0131nda farkl\u0131l\u0131klar oldu\u011funu tespit edebilirler.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Alt grup analizi, t\u0131bbi ara\u015ft\u0131rmalarda kullan\u0131lan yayg\u0131n bir tekniktir. Bir tedaviye farkl\u0131 yan\u0131t verip vermediklerini g\u00f6rmek i\u00e7in farkl\u0131 gruplar\u0131n incelendi\u011fi standart bir \u00e7al\u0131\u015fmada kullan\u0131lan yakla\u015f\u0131m\u0131n bir uzant\u0131s\u0131 olarak d\u00fc\u015f\u00fcn\u00fclebilir. Ancak bu teknik \u00e7e\u015fitli nedenlerden dolay\u0131 sorunlu olabilir:<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Baz\u0131 \u00e7al\u0131\u015fmalar alt gruplar\u0131n\u0131 \u00f6nceden tan\u0131mlamaz veya ka\u00e7 alt grubun incelenece\u011fini belirtmez. Bir ara\u015ft\u0131rmac\u0131 bunu yapmazsa, di\u011ferlerinin neden belirli gruplar\u0131 se\u00e7tiklerini ve her bir analizle neyi g\u00f6stermeye \u00e7al\u0131\u015ft\u0131klar\u0131n\u0131 anlamalar\u0131 zorla\u015f\u0131r. \u0130yi bir ara\u015ft\u0131rmac\u0131, sadece ilgin\u00e7 bulgulara yol a\u00e7anlar\u0131 de\u011fil, analiz etti\u011fi t\u00fcm alt gruplar\u0131 da rapor etmelidir.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Alt gruplar\u0131 analiz ederken, ara\u015ft\u0131rmac\u0131lar\u0131n istatistiksel olarak anlaml\u0131 ancak klinik olarak \u00f6nemsiz (yani ger\u00e7ekten \u00f6nemli olmayan) bir \u015fey bulmalar\u0131 m\u00fcmk\u00fcnd\u00fcr. \u00d6rne\u011fin, aspirinin ba\u015f a\u011fr\u0131s\u0131 tedavisinde asetaminofenden daha iyi sonu\u00e7 verip vermedi\u011fini ara\u015ft\u0131rd\u0131\u011f\u0131m\u0131z\u0131 varsayal\u0131m; aspirin alan ki\u015filerin y\u00fczde 80&#8217;inin hi\u00e7bir \u015fekilde rahatlamad\u0131\u011f\u0131n\u0131 tespit ettik.<\/span><\/li>\n<\/ul>\n<h2><b>Alt grup analizi nas\u0131l yap\u0131l\u0131r<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u00d6nemli ara\u015ft\u0131rmalarda alt grup analizinin \u00f6nemli rol\u00fc g\u00f6z ard\u0131 edilemez. Bu nedenle, a\u015fa\u011f\u0131daki unsurlar\u0131n herhangi bir rapora dahil edilmesi esast\u0131r:<\/span><\/p>\n<ol>\n<li>\n<h3><span style=\"font-weight: 400;\">  Analiz sonu\u00e7lar\u0131n\u0131n alt grup sonu\u00e7lar\u0131 oldu\u011funun a\u00e7\u0131k bir g\u00f6stergesidir.<\/span><\/h3>\n<\/li>\n<li>\n<h3><span style=\"font-weight: 400;\">  Uygun anlaml\u0131l\u0131k d\u00fczeyleri hesaplanm\u0131\u015f ve raporlanm\u0131\u015ft\u0131r.<\/span><\/h3>\n<\/li>\n<li>\n<h3><span style=\"font-weight: 400;\">  Ara\u015ft\u0131rma \u00f6nceden belirlenmi\u015f veya post-hoc ise, bu durum yaz\u0131da belirtilmelidir.<\/span><\/h3>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Alt grup analizi, bir ara\u015ft\u0131rma projesinin \u00f6nemli bir bile\u015fenidir. Piyasada bir\u00e7ok farkl\u0131 \u00fcr\u00fcn bulabilirsiniz. Hepsi ara\u015ft\u0131rma \u00e7abalar\u0131n\u0131za fayda sa\u011flamak i\u00e7in tasarlanm\u0131\u015ft\u0131r, ancak bunlardan etkili bir \u015fekilde nas\u0131l yararlanaca\u011f\u0131n\u0131z\u0131 bilmeniz gerekir.<\/span><\/p>\n<h2><b>Analiz i\u00e7in QuestionPro<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">QuestionPro&#8217;da alt grup analizi i\u00e7in kullanabilece\u011finiz bir kota kontrol mant\u0131\u011f\u0131m\u0131z var.  <\/span><span style=\"font-weight: 400;\">Alt gruplar\u0131 farkl\u0131la\u015ft\u0131rmak i\u00e7in \u00f6zel de\u011fi\u015fkenler i\u00e7eren anket URL&#8217;leri sa\u011flayabilir ve da\u011f\u0131tabiliriz.  <\/span><span style=\"font-weight: 400;\">Alt gruba dayal\u0131 mant\u0131k olu\u015fturarak ayn\u0131 ankette alt gruba \u00f6zg\u00fc sorular da olu\u015fturabilirsiniz.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00d6rne\u011fin, 50 erkek ve 50 kad\u0131n kat\u0131l\u0131mc\u0131y\u0131 analiz etmek istedi\u011finizi varsayal\u0131m. Cinsiyeti bir se\u00e7me sorusu olarak ekleyebilir ve ard\u0131ndan erkekler ve kad\u0131nlar i\u00e7in kota kontrol mant\u0131\u011f\u0131 ekleyebilirsiniz.  <\/span><span style=\"font-weight: 400;\">Cinsiyet sorusu yan\u0131tlar\u0131na dayanarak, erkeklere veya kad\u0131nlara \u00f6zg\u00fc sorular i\u00e7in mant\u0131k olu\u015fturabiliriz.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu \u015fekilde, yan\u0131t olarak erkek ve kad\u0131n kat\u0131l\u0131mc\u0131lar\u0131 yan\u0131tlar\u0131yla birlikte kolayca alt gruplara ay\u0131rabilir ve kota kontrol limitlerine dayanarak tam say\u0131da kat\u0131l\u0131mc\u0131ya ula\u015ft\u0131\u011f\u0131n\u0131zdan emin olabilirsiniz.<\/span><\/p>\n<p style=\"text-align: center;\"><b>Nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 \u00f6\u011frenin <\/b><a href=\"https:\/\/www.questionpro.com\/audience\/\"><br \/>\n  <b>SoruPro&#8217;nun<\/b><br \/>\n<\/a><b> pazar ara\u015ft\u0131rmas\u0131 ihtiya\u00e7lar\u0131n\u0131z\u0131 desteklemek i\u00e7in en iyi \u00f6zellikler&nbsp;<\/b><\/p>\n<p><strong>Yazarlar:<\/strong> Danielle Figueroa, Virat Harsoda<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bir alt grup analizi y\u00fcr\u00fctmenin ilk ad\u0131m\u0131, \u00e7al\u0131\u015fman\u0131za dahil etmek istedi\u011finiz gruplar\u0131 tan\u0131mlamakt\u0131r. Amac\u0131n\u0131z, bu gruplardan herhangi birinin belirli bir [&hellip;]<\/p>\n","protected":false},"author":80,"featured_media":711007,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1114],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Alt grup analizi: Nedir + Hatalardan nas\u0131l ka\u00e7\u0131n\u0131l\u0131r | QuestionPro<\/title>\n<meta name=\"description\" content=\"Alt grup analizi, belirli de\u011fi\u015fkenlerin ikincil veri analizinin sonucunu nas\u0131l etkiledi\u011fini g\u00f6rmek i\u00e7in detaya inmenizi sa\u011flayan bir s\u00fcre\u00e7tir.\" \/>\n<meta name=\"robots\" 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