{"id":172,"date":"2023-08-04T15:48:35","date_gmt":"2023-08-04T15:48:35","guid":{"rendered":"https:\/\/statorials.org\/tr\/yabanci-degisken-1\/"},"modified":"2023-08-04T15:48:35","modified_gmt":"2023-08-04T15:48:35","slug":"yabanci-degisken-1","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/yabanci-degisken-1\/","title":{"rendered":"D\u0131\u015f de\u011fi\u015fken"},"content":{"rendered":"

Bu makalede garip de\u011fi\u015fkenlerin ne oldu\u011fu a\u00e7\u0131klanmaktad\u0131r. Yabanc\u0131 de\u011fi\u015fken \u00f6rnekleri, yabanc\u0131 de\u011fi\u015fken t\u00fcrlerinin neler oldu\u011fu ve son olarak yabanc\u0131 de\u011fi\u015fkenin etkisinin nas\u0131l kontrol edilece\u011fini bulacaks\u0131n\u0131z. <\/p>\n

<\/span> Yabanc\u0131 de\u011fi\u015fken nedir?<\/span><\/h2>\n

Garip bir de\u011fi\u015fken,<\/strong> bir deneyin sonucunu etkileyebilecek ancak incelenmesi ilgin\u00e7 olmayan bir de\u011fi\u015fkendir. Bu nedenle, bir anketin sonu\u00e7lar\u0131n\u0131 de\u011fi\u015ftirmemesi i\u00e7in yabanc\u0131 bir de\u011fi\u015fkenin kontrol edilmesi gerekir.<\/p>\n

\u00d6rne\u011fin, bir ilac\u0131n insan v\u00fccudunu nas\u0131l etkiledi\u011fini analiz etmek istersek deney deneklerinin alerjileri garip bir de\u011fi\u015fken olacakt\u0131r. Mant\u0131ksal olarak, e\u011fer bir ki\u015fi ilac\u0131n bile\u015fenlerinden birine alerjisi varsa, tepkisi di\u011fer bireylerinkinden farkl\u0131 olacakt\u0131r. Bu nedenle istatistiksel bir \u00e7al\u0131\u015fma yapt\u0131\u011f\u0131n\u0131zda, t\u00fcm konu d\u0131\u015f\u0131 de\u011fi\u015fkenleri kontrol etmeye \u00e7al\u0131\u015fmal\u0131s\u0131n\u0131z.<\/p>\n

Dolay\u0131s\u0131yla, d\u0131\u015far\u0131dan gelen bir de\u011fi\u015fken, ara\u015ft\u0131rmac\u0131n\u0131n bilgisi d\u0131\u015f\u0131nda ba\u011f\u0131ml\u0131 de\u011fi\u015fkenin de\u011ferini etkileyebilir ve dolay\u0131s\u0131yla, ba\u011f\u0131ml\u0131<\/a> de\u011fi\u015fken ile analiz edilen ba\u011f\u0131ms\u0131z de\u011fi\u015fken<\/a> aras\u0131ndaki ili\u015fki hakk\u0131nda hatal\u0131 bir sonuca var\u0131lmas\u0131na yol a\u00e7abilir. <\/p>\n

<\/span> Yabanc\u0131 de\u011fi\u015fken \u00f6rnekleri<\/span><\/h2>\n

Art\u0131k garip bir de\u011fi\u015fkenin tan\u0131m\u0131n\u0131 bildi\u011fimize g\u00f6re, anlam\u0131n\u0131 daha iyi anlamak i\u00e7in bu t\u00fcr de\u011fi\u015fkenlerin baz\u0131 \u00f6rneklerini burada bulabilirsiniz.<\/p>\n

    \n
  1. Kazan\u0131lan notlar (ba\u011f\u0131ml\u0131 de\u011fi\u015fken) ile harcanan \u00e7al\u0131\u015fma saatleri (ba\u011f\u0131ms\u0131z de\u011fi\u015fken) aras\u0131ndaki ili\u015fkiyi incelerken, uyku saatleri akademik performans\u0131 etkileyebilece\u011finden, her \u00f6\u011frencinin uyudu\u011fu saat tek bir de\u011fi\u015fkendir.<\/span><\/li>\n
  2. Eklenen g\u00fcbre miktar\u0131n\u0131n (ba\u011f\u0131ms\u0131z de\u011fi\u015fken) bitki b\u00fcy\u00fcmesini (ba\u011f\u0131ml\u0131 de\u011fi\u015fken) nas\u0131l etkiledi\u011fini analiz etmek istiyorsan\u0131z, bitkilerin g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131na maruz kalma s\u00fcresi garip bir de\u011fi\u015fkendir \u00e7\u00fcnk\u00fc sonu\u00e7lar\u0131 ko\u015fulland\u0131rabilir.<\/span><\/li>\n
  3. Bir fabrikan\u0131n \u00fcretimi (ba\u011f\u0131ml\u0131 de\u011fi\u015fken) ile sahip oldu\u011fu makine say\u0131s\u0131 (ba\u011f\u0131ms\u0131z de\u011fi\u015fken) aras\u0131ndaki ili\u015fkiyi inceledi\u011fimizde, motivasyonlar\u0131n\u0131 ve dolay\u0131s\u0131yla performanslar\u0131n\u0131 etkiledi\u011fi i\u00e7in \u00e7al\u0131\u015fanlar\u0131n ald\u0131klar\u0131 maa\u015f garip bir de\u011fi\u015fkendir.<\/span> <\/li>\n<\/ol>\n

    <\/span> Yabanc\u0131 de\u011fi\u015fken t\u00fcrleri<\/span><\/h2>\n

    Temel olarak gereksiz de\u011fi\u015fkenler \u00fc\u00e7 farkl\u0131 t\u00fcrde s\u0131n\u0131fland\u0131r\u0131labilir:<\/p>\n

      \n
    • Durumsal (veya sosyal) de\u011fi\u015fkenler<\/strong> : Bunlar deney deneklerinin davran\u0131\u015flar\u0131n\u0131 etkileyebilecek \u00e7evresel de\u011fi\u015fkenlerdir. \u00d6rne\u011fin: g\u00fcr\u00fclt\u00fc, s\u0131cakl\u0131k, g\u00f6rsel dikkat da\u011f\u0131t\u0131c\u0131 unsurlar\u2026<\/span><\/li>\n
    • Deneyci yanl\u0131l\u0131\u011f\u0131<\/strong> : Ara\u015ft\u0131rmac\u0131 fark\u0131nda olmadan bireylerin davran\u0131\u015flar\u0131n\u0131 etkileyebilir. \u00d6rne\u011fin, deneycinin komutlar\u0131 olumlu ya da olumsuz bir \u015fekilde iletmesine ba\u011fl\u0131 olarak bir ki\u015fi farkl\u0131 davranabilir ya da deneyci, \u00f6nerilen durumda nas\u0131l davranmas\u0131 gerekti\u011fi konusunda dene\u011fe \u00f6neride bulunabilir.<\/span><\/li>\n
    • Ki\u015fisel (veya kat\u0131l\u0131mc\u0131) de\u011fi\u015fkenler<\/strong> : \u00c7al\u0131\u015f\u0131lan deneklerin \u00f6zellikleri deneyin sonucunu ko\u015fulland\u0131rabilir. \u00d6rne\u011fin: bireyin zekas\u0131, bireyin duygusal durumu, bir bireyin ge\u00e7mi\u015fte benzer testleri yapm\u0131\u015f olma deneyimi…<\/span> <\/li>\n<\/ul>\n

      <\/span> Yabanc\u0131 bir de\u011fi\u015fken nas\u0131l kontrol edilir<\/span><\/h2>\n

      Makale boyunca a\u00e7\u0131kland\u0131\u011f\u0131 gibi, istatistiksel analiz yap\u0131l\u0131rken, deney sonu\u00e7lar\u0131n\u0131 de\u011fi\u015ftirmemeleri ve hatal\u0131 sonu\u00e7lara yol a\u00e7mamalar\u0131 i\u00e7in d\u0131\u015f de\u011fi\u015fkenlerin kontrol edilmesi gerekir. Dolay\u0131s\u0131yla bu b\u00f6l\u00fcmde yabanc\u0131 de\u011fi\u015fkenin etkisini kontrol etmek i\u00e7in kullanabilece\u011fimiz farkl\u0131 teknikleri g\u00f6rece\u011fiz.<\/p>\n

        \n
      • Eliminasyon<\/strong> : Bazen gereksiz de\u011fi\u015fkenleri ortadan kald\u0131rabiliriz, bu mant\u0131ksal olarak ideal durumdur. \u00d6rne\u011fin deneyi ses ge\u00e7irmez bir odada yaparak g\u00fcr\u00fclt\u00fcn\u00fcn etkisini ortadan kald\u0131rabiliriz.<\/span><\/li>\n
      • Sabit ko\u015fullar<\/strong> : E\u011fer yabanc\u0131 de\u011fi\u015fkeni ortadan kald\u0131ramazsak, t\u00fcm deneylerde de\u011ferini sabit tutmaya \u00e7al\u0131\u015fabiliriz, bu \u015fekilde sonu\u00e7lar\u0131 etkilemeyecektir. \u00d6rne\u011fin s\u0131cakl\u0131\u011f\u0131n denekleri etkilememesi i\u00e7in ara\u015ft\u0131rma boyunca s\u0131cakl\u0131\u011f\u0131 sabit tutabiliriz.<\/span><\/li>\n
      • Dengeleme<\/strong> : D\u0131\u015far\u0131dan gelen de\u011fi\u015fkenin ortadan kald\u0131r\u0131lmas\u0131 veya sabit tutulmas\u0131 m\u00fcmk\u00fcn de\u011filse, s\u00f6z konusu de\u011fi\u015fkenin etkisi dengelenebilir. \u00d6rne\u011fin, deneyde cinsiyetin sonu\u00e7lar\u0131 etkilememesi i\u00e7in erkekleri ve kad\u0131nlar\u0131 denek olarak almam\u0131z gerekiyorsa, kad\u0131nlarla ayn\u0131 say\u0131da erke\u011fi de almal\u0131y\u0131z.<\/span><\/li>\n
      • Rastgelele\u015ftirme<\/strong> : Yukar\u0131daki tekniklerden hi\u00e7biri uygulanamad\u0131\u011f\u0131nda, konu d\u0131\u015f\u0131 de\u011fi\u015fkenlerin etkisini azaltmak i\u00e7in denekler rastgele se\u00e7ilebilir. \u00d6rne\u011fin, \u00f6\u011frencilerin akademik performanslar\u0131n\u0131 inceliyorsak, di\u011ferlerinden daha ak\u0131ll\u0131 \u00f6\u011frencilerin oldu\u011fu ger\u00e7e\u011fini en aza indirmek i\u00e7in konular\u0131 rastgele se\u00e7ebiliriz.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        Bu makalede garip de\u011fi\u015fkenlerin ne oldu\u011fu a\u00e7\u0131klanmaktad\u0131r. Yabanc\u0131 de\u011fi\u015fken \u00f6rnekleri, yabanc\u0131 de\u011fi\u015fken t\u00fcrlerinin neler oldu\u011fu ve son olarak yabanc\u0131 de\u011fi\u015fkenin etkisinin nas\u0131l kontrol edilece\u011fini bulacaks\u0131n\u0131z. Yabanc\u0131 de\u011fi\u015fken nedir? Garip bir de\u011fi\u015fken, bir deneyin sonucunu etkileyebilecek ancak incelenmesi ilgin\u00e7 olmayan bir de\u011fi\u015fkendir. Bu nedenle, bir anketin sonu\u00e7lar\u0131n\u0131 de\u011fi\u015ftirmemesi i\u00e7in yabanc\u0131 bir de\u011fi\u015fkenin kontrol edilmesi gerekir. \u00d6rne\u011fin, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-172","post","type-post","status-publish","format-standard","hentry","category-istatistik"],"yoast_head":"\n\u25b7 Garip de\u011fi\u015fken nedir? 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