{"id":731011,"date":"2022-10-30T11:00:29","date_gmt":"2022-10-30T11:00:29","guid":{"rendered":"https:\/\/www.questionpro.com\/blog\/secim-onyargisi-nedir-nasil-onlenir-pratik-etkileri\/"},"modified":"2022-10-30T11:00:29","modified_gmt":"2022-10-30T11:00:29","slug":"secim-onyargisi-nedir-nasil-onlenir-pratik-etkileri","status":"publish","type":"post","link":"https:\/\/qa-release.questionpro.com\/blog\/tr\/secim-onyargisi-nedir-nasil-onlenir-pratik-etkileri\/","title":{"rendered":"Se\u00e7im \u00d6nyarg\u0131s\u0131: Nedir, nas\u0131l \u00f6nlenir + pratik etkileri"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Ara\u015ft\u0131rmac\u0131lar, hedef toplumun ger\u00e7ekleriyle uyu\u015fmayan bulgular konusunda yard\u0131ma ihtiya\u00e7 duyabilir. Bunun \u00e7ok say\u0131da nedeni vard\u0131r, ancak en \u00f6nemlilerinden biri se\u00e7im yanl\u0131l\u0131\u011f\u0131d\u0131r. \u00c7al\u0131\u015fma \u00f6rnekleminin ilgilenilen pop\u00fclasyonu do\u011fru bir \u015fekilde temsil etmesi gerekti\u011finde ortaya \u00e7\u0131kar ve ara\u015ft\u0131rma sonu\u00e7lar\u0131nda farkl\u0131l\u0131klara neden olur.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Se\u00e7im yanl\u0131l\u0131\u011f\u0131n\u0131, pratik etkilerini ve bundan ka\u00e7\u0131nman\u0131n en iyi yollar\u0131n\u0131 anlamak, etkileriyle ba\u015fa \u00e7\u0131kman\u0131za yard\u0131mc\u0131 olacakt\u0131r. Veri toplama s\u00fcrecinizi nas\u0131l geli\u015ftirece\u011finiz hakk\u0131nda bilmeniz gereken her \u015fey bu yaz\u0131da ele al\u0131nacakt\u0131r.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Se\u00e7im yanl\u0131l\u0131\u011f\u0131 nedir?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Se\u00e7im yanl\u0131l\u0131\u011f\u0131, ara\u015ft\u0131rma \u00f6rnekleminizin yanl\u0131\u015f temsil edilmesine yol a\u00e7an deneysel hatalar\u0131 ifade eder. Kat\u0131l\u0131mc\u0131 havuzu veya veriler hedef grubu temsil etmedi\u011finde ortaya \u00e7\u0131kar.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Se\u00e7im yanl\u0131l\u0131\u011f\u0131n\u0131n \u00f6nemli bir nedeni, ara\u015ft\u0131rmac\u0131n\u0131n alt grup \u00f6zelliklerini dikkate almamas\u0131d\u0131r. \u00d6rnek veri de\u011fi\u015fkenleri ile ger\u00e7ek ara\u015ft\u0131rma evreni aras\u0131nda temel farkl\u0131l\u0131klara neden olur.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Se\u00e7im yanl\u0131l\u0131\u011f\u0131, ara\u015ft\u0131rmalarda \u00e7e\u015fitli nedenlerle ortaya \u00e7\u0131kmaktad\u0131r. Ara\u015ft\u0131rmac\u0131 \u00f6rneklem kitlesini yanl\u0131\u015f kriterler kullanarak se\u00e7erse, bu yanl\u0131l\u0131\u011f\u0131n say\u0131s\u0131z \u00f6rne\u011fini bulabilir. \u00c7al\u0131\u015fma g\u00f6n\u00fcll\u00fclerinin kat\u0131lmaya devam etme iste\u011fini etkileyen unsurlar nedeniyle de ger\u00e7ekle\u015febilir.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Ara\u015ft\u0131rmalarda se\u00e7im yanl\u0131l\u0131\u011f\u0131 t\u00fcrleri nelerdir?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Ara\u015ft\u0131rma s\u00fcrecinin \u00e7e\u015fitli noktalar\u0131nda \u00e7e\u015fitli se\u00e7im yanl\u0131l\u0131\u011f\u0131 t\u00fcrleri ortaya \u00e7\u0131kabilir. A\u015fa\u011f\u0131dakiler bunlardan baz\u0131lar\u0131d\u0131r:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">\u00d6rnekleme yanl\u0131l\u0131\u011f\u0131<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u00d6rnekleme yanl\u0131l\u0131\u011f\u0131, rastgele olmayan n\u00fcfus \u00f6rneklemesinin yol a\u00e7t\u0131\u011f\u0131 bir t\u00fcr se\u00e7im yanl\u0131l\u0131\u011f\u0131d\u0131r. Belirli alt gruplar ara\u015ft\u0131rma \u00f6rnekleminden \u00e7\u0131kar\u0131ld\u0131\u011f\u0131nda ortaya \u00e7\u0131kar ve \u00f6rneklem pop\u00fclasyonundaki alt gruplar\u0131n yanl\u0131\u015f temsil edilmesine yol a\u00e7ar.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">\u00d6rne\u011fin, b\u00f6lgenizdeki kalp hastal\u0131\u011f\u0131 prevalans\u0131n\u0131 ara\u015ft\u0131rd\u0131\u011f\u0131n\u0131z\u0131 d\u00fc\u015f\u00fcn\u00fcn. Veri toplamak i\u00e7in al\u0131\u015fveri\u015f merkezindeki m\u00fc\u015fterilerle g\u00f6r\u00fc\u015fmeler yapmaya karar verdiniz.<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">Bu strateji, hastanede yatan ve kalp hastal\u0131\u011f\u0131 olan hastalar\u0131 hari\u00e7 tutmaktad\u0131r. \u00d6rnekleminiz yanl\u0131d\u0131r \u00e7\u00fcnk\u00fc bir\u00e7ok insan o al\u0131\u015fveri\u015f merkezinde bulunmamakta, evlerinde veya hastanelerde kalmaktad\u0131r.<\/span><\/i><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Kendi kendini se\u00e7me \u00f6nyarg\u0131s\u0131<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Kendi kendini se\u00e7me \u00f6nyarg\u0131s\u0131, g\u00f6n\u00fcll\u00fc \u00f6nyarg\u0131s\u0131 olarak da bilinir. Bu durum, ara\u015ft\u0131rmaya g\u00f6n\u00fcll\u00fc olarak kat\u0131lan ki\u015filerin niteliklerinin ara\u015ft\u0131rman\u0131n hedefleri a\u00e7\u0131s\u0131ndan \u00f6nemli oldu\u011fu durumlarda ortaya \u00e7\u0131kar.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">\u00d6rneklem grubu ideal hedef kitle yerine g\u00f6n\u00fcll\u00fclerden olu\u015fuyorsa, kendi kendini se\u00e7me yanl\u0131 verilere neden olur. Ara\u015ft\u0131rmac\u0131lar\u0131n yanl\u0131 sonu\u00e7lar elde etmesi olduk\u00e7a muhtemeldir.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">\u00d6rne\u011fin, otomobil yanl\u0131s\u0131 bir taraftar, kendilerini bu alanda uzman olarak g\u00f6rd\u00fckleri i\u00e7in hedef pazara giren yeni bir otomobilin alg\u0131s\u0131n\u0131 inceleyen bir \u00e7al\u0131\u015fmaya kat\u0131labilir.<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">Kendi kendini se\u00e7me \u00f6nyarg\u0131s\u0131 nedeniyle, uygun olmayan yan\u0131tlar verebilir veya sorulmayan daha fazla bilgi verebilirler.<\/span><\/i><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Yan\u0131t vermeme yanl\u0131l\u0131\u011f\u0131<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Yan\u0131t vermeme \u00f6nyarg\u0131s\u0131, insanlar bir anketi yan\u0131tlamad\u0131\u011f\u0131nda veya bir ara\u015ft\u0131rma projesine kat\u0131lmad\u0131\u011f\u0131nda ortaya \u00e7\u0131kar. Anket ara\u015ft\u0131rmalar\u0131nda kat\u0131l\u0131mc\u0131lar uygun becerilere sahip olmad\u0131klar\u0131nda, zamanlar\u0131 olmad\u0131\u011f\u0131nda ya da konuyla ilgili su\u00e7luluk veya utan\u00e7 duyduklar\u0131nda bu durum s\u0131kl\u0131kla ya\u015fan\u0131r.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">\u00d6rne\u011fin, Ara\u015ft\u0131rmac\u0131lar bilgisayar bilimcilerinin yeni bir yaz\u0131l\u0131m par\u00e7as\u0131n\u0131 nas\u0131l g\u00f6rd\u00fckleriyle ilgilenirler. Bir anket yapt\u0131lar ve bir\u00e7ok bilgisayar bilimcisinin yan\u0131t vermedi\u011fini veya bitirmedi\u011fini g\u00f6rd\u00fcler.<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">Ara\u015ft\u0131rmac\u0131lar, kat\u0131l\u0131mc\u0131lar\u0131n verileri ald\u0131ktan sonra yaz\u0131l\u0131m\u0131n m\u00fckemmel ve y\u00fcksek kaliteli oldu\u011funa inand\u0131klar\u0131n\u0131 tespit etti. Ancak, yeni yaz\u0131l\u0131m\u0131 bilgisayar bilimcilerinin tamam\u0131na sunduktan sonra \u00e7o\u011funlukla olumsuz ele\u015ftiriler ald\u0131klar\u0131n\u0131 ke\u015ffederler.<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">Anket kat\u0131l\u0131mc\u0131lar\u0131, program kusurlar\u0131n\u0131 tespit edemeyen giri\u015f seviyesi bilgisayar bilimcileriydi. Ankete kat\u0131lanlar, daha \u00f6nemli olan bilgisayar bilimcisi n\u00fcfusunu yans\u0131tmamaktad\u0131r. Bu nedenle sonu\u00e7lar hatal\u0131 \u00e7\u0131km\u0131\u015ft\u0131r.<\/span><\/i><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Hayatta kalma \u00f6nyarg\u0131s\u0131<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Hayatta kalma yanl\u0131l\u0131\u011f\u0131, bir ara\u015ft\u0131rmac\u0131 de\u011fi\u015fkenleri bir tarama yar\u0131\u015fmas\u0131na tabi tuttu\u011funda ve prosed\u00fcr\u00fc ba\u015far\u0131yla tamamlayanlar\u0131 se\u00e7ti\u011finde ortaya \u00e7\u0131kar. Bu \u00f6n se\u00e7im y\u00f6ntemi, g\u00f6r\u00fcn\u00fcrl\u00fck eksikli\u011fi nedeniyle ba\u015far\u0131s\u0131z de\u011fi\u015fkenleri elemektedir.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Hayatta kalma \u00f6nyarg\u0131s\u0131, ilgili verilere sahip olmasalar bile en ba\u015far\u0131l\u0131 fakt\u00f6rlere odaklan\u0131r. Ara\u015ft\u0131rma sonu\u00e7lar\u0131n\u0131z\u0131 de\u011fi\u015ftirebilir ve ger\u00e7e\u011fi yans\u0131tmayan gereksiz olumlu g\u00f6r\u00fc\u015flere yol a\u00e7abilir.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">Giri\u015fimcilerin ba\u015far\u0131 de\u011fi\u015fkenlerini ara\u015ft\u0131rd\u0131\u011f\u0131n\u0131z\u0131 varsayal\u0131m. \u00c7o\u011fu \u00fcnl\u00fc giri\u015fimci \u00fcniversiteyi bitirmemi\u015ftir. \u00dcniversiteden g\u00fc\u00e7l\u00fc bir konseptle ayr\u0131lman\u0131n bir kariyer ba\u015flatmak i\u00e7in yeterli oldu\u011funu d\u00fc\u015f\u00fcnmenize neden olabilir. Ancak \u00fcniversiteyi b\u0131rakanlar\u0131n \u00e7o\u011fu zengin olmuyor.<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">Ger\u00e7ekte, \u00e7ok daha fazla say\u0131da insan ba\u015far\u0131s\u0131z i\u015fler kurmak i\u00e7in \u00fcniversiteyi b\u0131rakt\u0131. Bu \u00f6rnekte, hayatta kalma \u00f6nyarg\u0131s\u0131, sadece ba\u015far\u0131l\u0131 olan ayr\u0131lmalara dikkat etti\u011finizde ve ba\u015far\u0131s\u0131z olan ayr\u0131lmalar\u0131n b\u00fcy\u00fck \u00e7o\u011funlu\u011funu g\u00f6rmezden geldi\u011finizde ortaya \u00e7\u0131kar.<\/span><\/i><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Y\u0131pranma \u00f6nyarg\u0131s\u0131<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Y\u0131pranma \u00f6nyarg\u0131s\u0131, baz\u0131 kat\u0131l\u0131mc\u0131lar\u0131n anket devam ederken anketi terk etmesiyle ortaya \u00e7\u0131kar. Sonu\u00e7 olarak, ara\u015ft\u0131rma bulgular\u0131n\u0131zda bir\u00e7ok bilinmeyen vard\u0131r ve bu da sonu\u00e7lar\u0131n kalitesini d\u00fc\u015f\u00fcr\u00fcr.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">\u00c7o\u011fu zaman ara\u015ft\u0131rmac\u0131, okulu b\u0131rakma de\u011fi\u015fkenleri aras\u0131nda e\u011filimler arar. Bu e\u011filimleri tespit edebilirseniz, kat\u0131l\u0131mc\u0131lar\u0131n anketinizi neden aniden terk ettiklerini belirleyebilir ve uygun \u00f6nlemleri alabilirsiniz.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Hat\u0131rlama \u00f6nyarg\u0131s\u0131<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Hat\u0131rlama yanl\u0131l\u0131\u011f\u0131, baz\u0131 \u00f6rneklem \u00fcyeleri \u00f6nemli bilgileri hat\u0131rlamakta zorland\u0131\u011f\u0131nda ortaya \u00e7\u0131kar ve bu da ara\u015ft\u0131rma s\u00fcrecinizi etkiler. Ara\u015ft\u0131rmac\u0131lar \u00f6nlerinde duran \u015feyi reddettiklerinde ve bunun yerine g\u00f6rmek istediklerini g\u00f6rd\u00fcklerinde ger\u00e7ekle\u015fir.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">Sadece yeni bir film izlemi\u015f olanlara anket yaparsan\u0131z tarafl\u0131 bir sonu\u00e7 elde edersiniz. Filmi izleyenler sevdiklerini, izlemeyenler ise sevmediklerini s\u00f6yleyeceklerdir. Bunun nedeni, filmi sevenlerin sevmeyenlere k\u0131yasla tart\u0131\u015fmaya daha istekli olmalar\u0131d\u0131r.<\/span><\/i><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">\u00d6rtbas \u00f6nyarg\u0131s\u0131<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Eksik kapsama \u00f6nyarg\u0131s\u0131, temsili bir \u00f6rneklemin hedef n\u00fcfusun daha k\u00fc\u00e7\u00fck bir oran\u0131ndan \u00e7ekilmesi durumunda ortaya \u00e7\u0131kar. \u00c7evrimi\u00e7i anketler \u00f6zellikle eksik kapsam yanl\u0131l\u0131\u011f\u0131na kar\u015f\u0131 savunmas\u0131zd\u0131r.<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">Kendini bildiren sa\u011fl\u0131kla ilgili \u00e7evrimi\u00e7i bir ankette, diyelim ki a\u015f\u0131r\u0131 alkol ve sigara i\u00e7me davran\u0131\u015flar\u0131na odaklan\u0131yorsunuz. Yine de, anketi y\u00fcr\u00fctme \u015fekliniz nedeniyle, internet kullanmayan insanlar\u0131 kas\u0131tl\u0131 olarak d\u0131\u015far\u0131da b\u0131rak\u0131yorsunuz.<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><i><span style=\"font-weight: 400;\">Bu \u015fekilde, daha ya\u015fl\u0131 ve daha az e\u011fitimli bireyler \u00f6rnekleminizin d\u0131\u015f\u0131nda kal\u0131r. \u0130nternet kullan\u0131c\u0131lar\u0131 ve kullanmayanlar \u00f6nemli \u00f6l\u00e7\u00fcde farkl\u0131l\u0131k g\u00f6sterdi\u011finden, \u00e7evrimi\u00e7i anketinizden g\u00fcvenilir sonu\u00e7lar elde edemezsiniz.<\/span><\/i><\/p>\n<h2><span style=\"font-weight: 400;\">Se\u00e7im yanl\u0131l\u0131\u011f\u0131n\u0131n etkileri nelerdir?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Ara\u015ft\u0131rmalarda, ara\u015ft\u0131rma sonu\u00e7lar\u0131n\u0131n g\u00fcvenilirli\u011fini tehlikeye atan rastgele veya sistematik hatalar olma ihtimali her zaman vard\u0131r. Se\u00e7im yanl\u0131l\u0131\u011f\u0131n\u0131n \u00e7e\u015fitli etkileri olabilir ve bu etkilerin ne kadar \u00f6nemli veya hangi y\u00f6nde oldu\u011funu s\u00f6ylemek genellikle zordur. Bu etkiler, i\u015fletmeler i\u00e7in a\u015fa\u011f\u0131dakiler de dahil olmak \u00fczere \u00e7e\u015fitli sorunlara yol a\u00e7abilir:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Gelir ve itibar kayb\u0131 riski<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u0130\u015f planlamas\u0131 ve stratejisi i\u00e7in, temsili olmayan \u00f6rneklemlerden elde edilen i\u00e7g\u00f6r\u00fcler, hedef kitleyle uyumlu olmad\u0131klar\u0131 i\u00e7in \u00f6nemli \u00f6l\u00e7\u00fcde daha az faydal\u0131d\u0131r. \u0130\u015f kararlar\u0131 bu bulgulara dayand\u0131r\u0131l\u0131rsa para ve itibar kaybetme riski vard\u0131r.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Analizin d\u0131\u015f ge\u00e7erlili\u011fini etkiler<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Ara\u015ft\u0131rma, yanl\u0131\u015f verilerin bir sonucu olarak daha az g\u00fcvenilir hale gelir. Dolay\u0131s\u0131yla, \u00f6rneklemin tarafl\u0131 olmas\u0131 nedeniyle analizin d\u0131\u015f ge\u00e7erlili\u011fi tehlikeye girmektedir.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">\n<h3><span style=\"font-weight: 400;\">Uygunsuz i\u015f kararlar\u0131na yol a\u00e7ar<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Nihai sonu\u00e7lar \u00f6nyarg\u0131l\u0131ysa ve konuyu temsil etmiyorsa, \u00f6nemli i\u015f kararlar\u0131 al\u0131rken \u00e7al\u0131\u015fman\u0131n bulgular\u0131na g\u00fcvenmek g\u00fcvenli de\u011fildir.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Se\u00e7im yanl\u0131l\u0131\u011f\u0131ndan nas\u0131l ka\u00e7\u0131n\u0131l\u0131r?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Anket sonu\u00e7lar\u0131n\u0131z\u0131 se\u00e7im yanl\u0131l\u0131\u011f\u0131 yoluyla etkilemi\u015f olma ihtimaliniz y\u00fcksektir. Se\u00e7im yanl\u0131l\u0131\u011f\u0131ndan ka\u00e7\u0131nman\u0131za yard\u0131mc\u0131 olmas\u0131 i\u00e7in a\u015fa\u011f\u0131daki tavsiyeleri g\u00f6zden ge\u00e7irin:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Anket tasar\u0131m\u0131 s\u0131ras\u0131nda<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Anketinizin yap\u0131s\u0131n\u0131 geli\u015ftirirken se\u00e7im yanl\u0131l\u0131\u011f\u0131ndan ka\u00e7\u0131nmak i\u00e7in bu \u00f6nerilerden baz\u0131lar\u0131n\u0131 deneyin:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Anket hedeflerinizin a\u00e7\u0131k oldu\u011fundan emin olun.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Hedef kitleniz i\u00e7in kar\u015f\u0131lanmas\u0131 gereken standartlar\u0131 belirtin.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u00fcmk\u00fcn olan her kat\u0131l\u0131mc\u0131ya ankete kat\u0131lmas\u0131 i\u00e7in adil bir f\u0131rsat tan\u0131y\u0131n.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">\u00d6rnekleme s\u0131ras\u0131nda<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Numune se\u00e7me s\u00fcrecinde bu stratejilerden baz\u0131lar\u0131n\u0131 uygulamaya koymay\u0131 d\u00fc\u015f\u00fcn\u00fcn:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u00fcre\u00e7lerinizde rastgele \u00f6rnekleme kullan\u0131rken, uygun rastgelele\u015ftirmeyi sa\u011flay\u0131n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Kat\u0131l\u0131mc\u0131 listenizin g\u00fcncel oldu\u011fundan ve hedef kitleyi do\u011fru bir \u015fekilde temsil etti\u011finden emin olun.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Alt gruplar\u0131n bir b\u00fct\u00fcn olarak n\u00fcfusu temsil etti\u011finden ve temel fakt\u00f6rleri payla\u015ft\u0131\u011f\u0131ndan emin olun.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">De\u011ferlendirme s\u0131ras\u0131nda<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">De\u011ferlendirme ve do\u011frulama s\u00fcrecinden ge\u00e7erken, se\u00e7im yanl\u0131l\u0131\u011f\u0131ndan ka\u00e7\u0131nmak i\u00e7in bu fikirlerden baz\u0131lar\u0131n\u0131 uygulamaya koymay\u0131 d\u00fc\u015f\u00fcnmeniz gerekir:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00d6rneklem se\u00e7iminizin, prosed\u00fcr\u00fcn\u00fcz\u00fcn ve veri toplaman\u0131z\u0131n \u00f6nyarg\u0131s\u0131z oldu\u011fundan emin olmak istiyorsan\u0131z, ikinci bir ara\u015ft\u0131rmac\u0131n\u0131n arkan\u0131zdan bakmas\u0131 iyi bir fikirdir.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Verilerin nas\u0131l de\u011fi\u015fti\u011fini izlemek i\u00e7in teknolojiyi uygulay\u0131n, b\u00f6ylece beklenmedik sonu\u00e7lar\u0131 belirleyebilir ve hatal\u0131 verileri onarmak veya \u00f6nlemek i\u00e7in h\u0131zl\u0131 bir \u015fekilde ara\u015ft\u0131rma yapabilirsiniz.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ara\u015ft\u0131rman\u0131z\u0131n g\u00fc\u00e7l\u00fc i\u00e7 ge\u00e7erlilik yolunda olup olmad\u0131\u011f\u0131n\u0131 do\u011frulamak i\u00e7in \u00f6nceki temel ara\u015ft\u0131rma veri e\u011filimlerini kontrol edin.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Anketi yan\u0131tlamayan ki\u015fileri ek bir ankete davet edin. Bulgular\u0131n daha net anla\u015f\u0131lmas\u0131 i\u00e7in ikinci bir tur daha fazla oy sa\u011flayabilir.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Sonu\u00e7<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Se\u00e7im yanl\u0131l\u0131\u011f\u0131n\u0131, t\u00fcrlerini ve ara\u015ft\u0131rma sonu\u00e7lar\u0131n\u0131 nas\u0131l etkiledi\u011fini anlamak, onunla \u00e7al\u0131\u015fman\u0131n ba\u015flang\u0131\u00e7 ad\u0131m\u0131d\u0131r. Bunu tespit etmeye ve etkilerini en aza indirmek i\u00e7in \u00e7al\u0131\u015fmaya yard\u0131mc\u0131 olacak \u00f6nemli veriler ke\u015ffettik. G\u00fcvenilir ara\u015ft\u0131rma verileri toplamak i\u00e7in QuestionPro&#8217;yu kullanarak se\u00e7im yanl\u0131l\u0131\u011f\u0131ndan ka\u00e7\u0131nabilirsiniz.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">N\u00f6tr olmayan \u00f6rneklerin sistem sorunlar\u0131yla birle\u015ftirilmesi gibi \u00e7e\u015fitli durumlar se\u00e7im yanl\u0131l\u0131\u011f\u0131na neden olabilir. Ara\u015ft\u0131rma ve de\u011fi\u015fim deneyimlerinde kullan\u0131lacak kurumsal d\u00fczeyde bir ara\u015ft\u0131rma arac\u0131 QuestionPro ara\u015ft\u0131rma paketidir.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">QuestionPro ara\u015ft\u0131rma paketi, profesyonel ara\u015ft\u0131rmalara dayal\u0131 anket \u015fablonlar\u0131 sunarak anket geli\u015ftirmeyi kolayla\u015ft\u0131r\u0131r. Anketler hakk\u0131nda daha fazla bilgi edinin ve \u00fccretsiz bir hesap olu\u015fturarak anket yaz\u0131l\u0131m\u0131m\u0131z\u0131 kullanmaya ba\u015flay\u0131n.<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.questionpro.com\/research-edition-survey-software\/\" target=\"_blank\" rel=\"noopener\"><br \/>\n  <button>DAHA FAZLA BI\u0307LGI\u0307 EDI\u0307NI\u0307N<\/button><br \/>\n<\/a>       <a href=\"https:\/\/www.questionpro.com\/a\/showEntry.do?classID=1053&amp;sourceRef=blog\" target=\"_blank\" rel=\"noopener\"><br \/>\n  <button>\u00dcCRETS\u0130Z DENEME<\/button><br \/>\n<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ara\u015ft\u0131rmac\u0131lar, hedef toplumun ger\u00e7ekleriyle uyu\u015fmayan bulgular konusunda yard\u0131ma ihtiya\u00e7 duyabilir. Bunun \u00e7ok say\u0131da nedeni vard\u0131r, ancak en \u00f6nemlilerinden biri se\u00e7im [&hellip;]<\/p>\n","protected":false},"author":51,"featured_media":720207,"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":[1118],"tags":[],"class_list":{"0":"post-731011","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-arastirma-araclari-ve-uygulamalari","8":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Se\u00e7im \u00d6nyarg\u0131s\u0131: Nedir, nas\u0131l \u00f6nlenir + pratik etkileri | QuestionPro<\/title>\n<meta name=\"description\" content=\"Se\u00e7im yanl\u0131l\u0131\u011f\u0131, yanl\u0131\u015f randomizasyondan kaynaklanmaktad\u0131r. \u0130deal ara\u015ft\u0131rma pop\u00fclasyonu iyi tan\u0131mlanm\u0131\u015f, eri\u015filebilir ve g\u00fcvenilirdir. 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