{"id":187,"date":"2023-08-04T11:16:32","date_gmt":"2023-08-04T11:16:32","guid":{"rendered":"https:\/\/statorials.org\/tr\/ortak-degisken-2\/"},"modified":"2023-08-04T11:16:32","modified_gmt":"2023-08-04T11:16:32","slug":"ortak-degisken-2","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/ortak-degisken-2\/","title":{"rendered":"Ortak de\u011fi\u015fken"},"content":{"rendered":"

Bu makalede istatistiklerde ortak de\u011fi\u015fkenlerin ne oldu\u011fu a\u00e7\u0131klanmaktad\u0131r. Bu nedenle ortak de\u011fi\u015fkenin anlam\u0131n\u0131, ortak de\u011fi\u015fken \u00f6rneklerini ve ortak de\u011fi\u015fkenle istatistiksel bir modelin nas\u0131l olu\u015fturulaca\u011f\u0131n\u0131 bulacaks\u0131n\u0131z. <\/p>\n

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

\u0130statistikte ortak de\u011fi\u015fken<\/strong> , ba\u011f\u0131ms\u0131z de\u011fi\u015fken ile ba\u011f\u0131ml\u0131 de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi etkileyen ancak do\u011frudan ilgilenmeyen bir de\u011fi\u015fken t\u00fcr\u00fcd\u00fcr. Ba\u015fka bir deyi\u015fle ortak de\u011fi\u015fken, sonu\u00e7lar\u0131 etkileyen ancak \u00fczerinde \u00e7al\u0131\u015f\u0131lmayan bir de\u011fi\u015fkendir.<\/p>\n

Bu nedenle istatistiksel bir \u00e7al\u0131\u015fmada ortak de\u011fi\u015fkenin, ara\u015ft\u0131rman\u0131n sonu\u00e7lar\u0131n\u0131 etkilememesi i\u00e7in kontrol alt\u0131nda tutulmas\u0131 gerekir. Normalde, ba\u011f\u0131ml\u0131 de\u011fi\u015fken \u00fczerindeki etkilerini belirlemek i\u00e7in ortak de\u011fi\u015fkenler genellikle \u00e7al\u0131\u015fma modeline dahil edilir; buna a\u015fa\u011f\u0131da daha ayr\u0131nt\u0131l\u0131 olarak d\u00f6nece\u011fiz.<\/p>\n

\u00d6rne\u011fin, bir \u015firketin hisse senedi fiyat\u0131 (ba\u011f\u0131ml\u0131 de\u011fi\u015fken) ile \u015firket k\u00e2r\u0131 (ba\u011f\u0131ms\u0131z de\u011fi\u015fken) aras\u0131ndaki ili\u015fkiyi analiz etmek istiyorsan\u0131z, ortak de\u011fi\u015fken borsa e\u011filimi olacakt\u0131r. \u00c7\u00fcnk\u00fc, borsadaki geri kalan hisselerin fiyat\u0131n\u0131n y\u00fckselip d\u00fc\u015fmedi\u011fini bilmekle ilgilenmesek bile, mant\u0131ksal olarak incelenen \u015firketin hisselerinin fiyat\u0131, piyasan\u0131n y\u00fckseli\u015f veya d\u00fc\u015f\u00fc\u015f e\u011filimi g\u00f6stermesine ba\u011fl\u0131 olarak de\u011fi\u015fecektir. .<\/p>\n

Bir ortak de\u011fi\u015fkene bazen ortak de\u011fi\u015fken de\u011fi\u015fken<\/strong> de denilebilir. <\/p>\n

\u27a4<\/span> Bak\u0131n\u0131z:<\/strong> ba\u011f\u0131ml\u0131 de\u011fi\u015fken ile ba\u011f\u0131ms\u0131z de\u011fi\u015fken aras\u0131ndaki fark<\/a><\/div>\n

<\/span>Ortak de\u011fi\u015fken \u00f6rnekleri<\/span><\/h2>\n

Bir ortak de\u011fi\u015fkenin tan\u0131m\u0131n\u0131 g\u00f6rd\u00fckten sonra, kavram\u0131 anlamay\u0131 tamamlamak i\u00e7in birka\u00e7 ortak de\u011fi\u015fken \u00f6rne\u011fi g\u00f6rece\u011fiz:<\/p>\n

    \n
  1. 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 kald\u0131\u011f\u0131 s\u00fcre, sonu\u00e7lar\u0131 ko\u015fulland\u0131rabilece\u011fi i\u00e7in bir ortak de\u011fi\u015fkendir.<\/span><\/li>\n
  2. Ama\u00e7, \u00f6\u011frencilerin ald\u0131\u011f\u0131 notlar (ba\u011f\u0131ml\u0131 de\u011fi\u015fken) ile ders \u00e7al\u0131\u015fmak i\u00e7in harcanan saatler (ba\u011f\u0131ms\u0131z de\u011fi\u015fken) aras\u0131ndaki ili\u015fkiyi incelemekse, ortak de\u011fi\u015fken, m\u00fcfredat\u0131 a\u00e7\u0131klayan \u00f6\u011fretmendir. Mant\u0131ksal olarak notlar \u00f6\u011fretmenler aras\u0131nda farkl\u0131l\u0131k g\u00f6sterecektir \u00e7\u00fcnk\u00fc di\u011ferlerinden daha iyi a\u00e7\u0131klayan \u00f6\u011fretmenler vard\u0131r.<\/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, ortak de\u011fi\u015fken \u00e7al\u0131\u015fanlar\u0131n motivasyonlar\u0131n\u0131 ve dolay\u0131s\u0131yla performanslar\u0131n\u0131 etkiledi\u011fi i\u00e7in ald\u0131klar\u0131 maa\u015ft\u0131r.<\/span> <\/li>\n<\/ol>\n

    <\/span> De\u011fi\u015fken ve ortak de\u011fi\u015fken<\/span><\/h2>\n

    Genel olarak ortak de\u011fi\u015fkenler, \u00e7al\u0131\u015fmalar\u0131nda uyand\u0131rd\u0131klar\u0131 ilgiye g\u00f6re de\u011fi\u015fkenlerden ayr\u0131l\u0131r. Ba\u015fka bir deyi\u015fle, istatistiksel bir \u00e7al\u0131\u015fmada, bir ortak de\u011fi\u015fkeni incelemek de\u011fil, bir de\u011fi\u015fkenin sonu\u00e7lar \u00fczerindeki etkisini analiz etmek ilgi \u00e7ekicidir.<\/p>\n

    Ancak hem bir de\u011fi\u015fken hem de bir ortak de\u011fi\u015fken elde edilen sonu\u00e7lar\u0131 etkiler, bu nedenle her iki de\u011fi\u015fken t\u00fcr\u00fc de genellikle istatistiksel modele dahil edilir. Bu \u015fekilde ortak de\u011fi\u015fkenin yan\u0131t \u00fczerindeki etkisi g\u00f6r\u00fclebilmekte ve dolay\u0131s\u0131yla ba\u011f\u0131ms\u0131z de\u011fi\u015fken ile ba\u011f\u0131ml\u0131 de\u011fi\u015fken aras\u0131ndaki korelasyon do\u011fru bir \u015fekilde analiz edilebilmektedir.<\/p>\n

    <\/span> Ortak de\u011fi\u015fkenli model<\/span><\/h2>\n

    Normalde ba\u011f\u0131ml\u0131 de\u011fi\u015fken ile ba\u011f\u0131ms\u0131z de\u011fi\u015fken aras\u0131ndaki korelasyonu incelemek i\u00e7in basit bir do\u011frusal regresyon modeli uygulan\u0131r. Bu istatistiksel model, iki de\u011fi\u015fken aras\u0131ndaki ili\u015fkinin anlaml\u0131 olup olmad\u0131\u011f\u0131n\u0131 veya tam tersine ihmal edilip edilemeyece\u011fini belirlemeyi m\u00fcmk\u00fcn k\u0131lar.<\/p>\n

    Ancak basit do\u011frusal regresyonda yaln\u0131zca bir a\u00e7\u0131klay\u0131c\u0131 de\u011fi\u015fken dahil edildi\u011finden ortak de\u011fi\u015fkenler dikkate al\u0131nmaz. B\u00f6ylece bir veya daha fazla ortak de\u011fi\u015fken oldu\u011funda bunlar genellikle \u00e7al\u0131\u015fmaya dahil edilir ve b\u00f6ylece \u00e7oklu regresyon modeli ger\u00e7ekle\u015ftirilir. Bu \u015fekilde, yan\u0131t\u0131n ilgilenilen a\u00e7\u0131klay\u0131c\u0131 de\u011fi\u015fkenle ve ortak de\u011fi\u015fkenlerle ili\u015fkisi analiz edilebilir, \u00e7\u00fcnk\u00fc bunlar ayn\u0131 zamanda sonu\u00e7lar\u0131 da ko\u015fulland\u0131rabilir.<\/p>\n

    Bu t\u00fcr istatistiksel analize kovaryans analizi (veya ANCOVA) ad\u0131 verilir; bu, varyans analizine (ANOVA) benzer, ancak ayn\u0131 zamanda \u00e7al\u0131\u015fma ortak de\u011fi\u015fkenlerini de i\u00e7erir.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Bu makalede istatistiklerde ortak de\u011fi\u015fkenlerin ne oldu\u011fu a\u00e7\u0131klanmaktad\u0131r. Bu nedenle ortak de\u011fi\u015fkenin anlam\u0131n\u0131, ortak de\u011fi\u015fken \u00f6rneklerini ve ortak de\u011fi\u015fkenle istatistiksel bir modelin nas\u0131l olu\u015fturulaca\u011f\u0131n\u0131 bulacaks\u0131n\u0131z. Ortak de\u011fi\u015fken nedir? \u0130statistikte ortak de\u011fi\u015fken , ba\u011f\u0131ms\u0131z de\u011fi\u015fken ile ba\u011f\u0131ml\u0131 de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi etkileyen ancak do\u011frudan ilgilenmeyen bir de\u011fi\u015fken t\u00fcr\u00fcd\u00fcr. Ba\u015fka bir deyi\u015fle ortak de\u011fi\u015fken, sonu\u00e7lar\u0131 etkileyen ancak \u00fczerinde […]<\/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-187","post","type-post","status-publish","format-standard","hentry","category-istatistik"],"yoast_head":"\n\u25b7 Ortak de\u011fi\u015fken nedir? 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