{"id":180,"date":"2023-08-04T13:20:14","date_gmt":"2023-08-04T13:20:14","guid":{"rendered":"https:\/\/statorials.org\/tr\/ara-degisken-2\/"},"modified":"2023-08-04T13:20:14","modified_gmt":"2023-08-04T13:20:14","slug":"ara-degisken-2","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/ara-degisken-2\/","title":{"rendered":"Ara de\u011fi\u015fken"},"content":{"rendered":"

Bu makalede ara de\u011fi\u015fkenlerin ne oldu\u011fu a\u00e7\u0131klanmaktad\u0131r. Bu nedenle, m\u00fcdahale eden de\u011fi\u015fkenin anlam\u0131n\u0131, m\u00fcdahale eden de\u011fi\u015fkenlerin \u00f6rneklerini ve di\u011fer de\u011fi\u015fken t\u00fcrleriyle aras\u0131ndaki fark\u0131 bulacaks\u0131n\u0131z. <\/p>\n

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

\u0130statistikte, ara de\u011fi\u015fken<\/strong> , ba\u011f\u0131ml\u0131 de\u011fi\u015fken ile ba\u011f\u0131ms\u0131z de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi etkileyen ancak manip\u00fcle edilemeyen bir de\u011fi\u015fkendir. Dolay\u0131s\u0131yla bir ara de\u011fi\u015fken bir anketin sonu\u00e7lar\u0131n\u0131 etkileyebilir.<\/p>\n

Araya giren bir de\u011fi\u015fken ayn\u0131 zamanda m\u00fcdahale eden de\u011fi\u015fken<\/strong> veya kafa kar\u0131\u015ft\u0131r\u0131c\u0131 de\u011fi\u015fken<\/strong> olarak da adland\u0131r\u0131labilir.<\/p>\n

Aradaki de\u011fi\u015fkenlerin \u00f6zelliklerinden biri de tespit edilmelerinin zor olmas\u0131d\u0131r; dahas\u0131, bir kez belirlendikten sonra istatistiksel \u00e7al\u0131\u015fmada etkilerini n\u00f6tralize etmek veya ortadan kald\u0131rmak zordur. <\/p>\n

<\/span> M\u00fcdahale de\u011fi\u015fkenlerine \u00f6rnekler<\/span><\/h2>\n

Art\u0131k araya giren de\u011fi\u015fkenin tan\u0131m\u0131n\u0131 bildi\u011fimize g\u00f6re, kavram\u0131 daha iyi \u00f6z\u00fcmsemek i\u00e7in bu t\u00fcr de\u011fi\u015fkenlerin birka\u00e7 \u00f6rne\u011fini g\u00f6rece\u011fiz.<\/p>\n

    \n
  1. \u00d6rne\u011fin, haz\u0131rlanan bir yeme\u011fin i\u00e7indekiler (ba\u011f\u0131ms\u0131z de\u011fi\u015fken) ile yeme\u011fin kalitesi (ba\u011f\u0131ml\u0131 de\u011fi\u015fken) aras\u0131ndaki bir analizde, m\u00fc\u015fterinin haz\u0131rlanan yeme\u011fi mikrodalgada \u0131s\u0131tma s\u00fcresi ara de\u011fi\u015fkendir. Bu de\u011fi\u015fken yeme\u011fin kalitesini a\u00e7\u0131k\u00e7a etkilese de hi\u00e7bir zaman kontrol edilemez \u00e7\u00fcnk\u00fc her kullan\u0131c\u0131 buna istedi\u011fi kadar zaman ay\u0131racakt\u0131r.<\/span><\/li>\n
  2. Ama\u00e7, \u00f6\u011frencilerin ald\u0131\u011f\u0131 notlar (ba\u011f\u0131ml\u0131 de\u011fi\u015fken) ile ayr\u0131lan \u00e7al\u0131\u015fma saatleri (ba\u011f\u0131ms\u0131z de\u011fi\u015fken) aras\u0131ndaki ili\u015fkiyi incelemekse, ara de\u011fi\u015fken, \u00f6\u011fretmenlerin program\u0131 a\u00e7\u0131klamada motivasyonlar\u0131d\u0131r. Mant\u0131ksal olarak notlar her \u00f6\u011fretmenin motivasyonuna g\u00f6re de\u011fi\u015fecektir ancak bu deneyde bunu kontrol etmek zordur.<\/span><\/li>\n
  3. Bir \u015firketin ba\u015far\u0131s\u0131zl\u0131\u011fa u\u011framas\u0131 i\u00e7in gereken s\u00fcre (ba\u011f\u0131ml\u0131 de\u011fi\u015fken) ile \u015firketin kurulu\u015fu s\u0131ras\u0131nda yap\u0131lan yat\u0131r\u0131m (ba\u011f\u0131ms\u0131z de\u011fi\u015fken) aras\u0131ndaki ili\u015fkiyi incelersek, ara de\u011fi\u015fken pazar rekabet\u00e7ili\u011fidir. Rekabetin i\u015fletmenin ba\u015far\u0131s\u0131n\u0131 veya ba\u015far\u0131s\u0131zl\u0131\u011f\u0131n\u0131 etkileyece\u011fi a\u00e7\u0131kt\u0131r, ancak bu, s\u00f6z konusu pazar\u0131n de\u011fi\u015ftirilemeyen bir \u00f6zelli\u011fidir.<\/span> <\/li>\n<\/ol>\n

    <\/span> Ara de\u011fi\u015fken, ba\u011f\u0131ml\u0131 de\u011fi\u015fken ve ba\u011f\u0131ms\u0131z de\u011fi\u015fken<\/span><\/h2>\n

    Bu b\u00f6l\u00fcmde bir istatistiksel \u00e7al\u0131\u015fman\u0131n ara de\u011fi\u015fkeni, ba\u011f\u0131ml\u0131 de\u011fi\u015fkeni ve ba\u011f\u0131ms\u0131z de\u011fi\u015fkeni aras\u0131ndaki ili\u015fkiyi g\u00f6rece\u011fiz.<\/p>\n

    Ba\u011f\u0131ml\u0131 de\u011fi\u015fken<\/strong> , de\u011feri ba\u015fka bir de\u011fi\u015fkene ba\u011fl\u0131 olan de\u011fi\u015fken, ba\u011f\u0131ms\u0131z de\u011fi\u015fken<\/strong> ise de\u011feri ba\u015fka bir de\u011fi\u015fkene ba\u011fl\u0131 olmayan ancak genellikle ara\u015ft\u0131rmac\u0131 taraf\u0131ndan belirlenen de\u011fi\u015fkendir.<\/p>\n

    Normalde istatistiksel bir analizde, ba\u011f\u0131ms\u0131z de\u011fi\u015fken ile ba\u011f\u0131ml\u0131 de\u011fi\u015fken aras\u0131ndaki olas\u0131 neden-sonu\u00e7 ili\u015fkisini incelemek isteriz, dolay\u0131s\u0131yla yap\u0131lan deneyleri ba\u015fka hi\u00e7bir fakt\u00f6r\u00fcn etkilememesi \u00f6nemlidir.<\/p>\n

    Bu nedenle, elde edilen sonu\u00e7lar\u0131 de\u011fi\u015ftirebilecekleri ve dolay\u0131s\u0131yla ba\u011f\u0131ml\u0131 de\u011fi\u015fken ile ba\u011f\u0131ms\u0131z de\u011fi\u015fken aras\u0131ndaki ili\u015fki hakk\u0131nda hatal\u0131 bir sonuca var\u0131labilecekleri i\u00e7in (bu zor olsa da) ara de\u011fi\u015fkenleri etkisiz hale getirmeye \u00e7al\u0131\u015f\u0131lmal\u0131d\u0131r. <\/p>\n

    \u27a4<\/span> Bak\u0131n\u0131z:<\/strong> istatistikte ba\u011f\u0131ml\u0131 ve ba\u011f\u0131ms\u0131z de\u011fi\u015fkenler<\/a> <\/div>\n

    <\/span> Bir ara de\u011fi\u015fkenin kontrol edilmesi<\/span><\/h2>\n

    Makale boyunca g\u00f6rd\u00fc\u011f\u00fcm\u00fcz gibi, ara de\u011fi\u015fkenler ara\u015ft\u0131rmada \u00f6nemlidir \u00e7\u00fcnk\u00fc sonu\u00e7lar\u0131 ve dolay\u0131s\u0131yla \u00e7al\u0131\u015fman\u0131n sonu\u00e7lar\u0131n\u0131 de\u011fi\u015ftirebilirler.<\/p>\n

    Bununla birlikte, ara de\u011fi\u015fkenleri tan\u0131mlamak ve hatta etkilerini n\u00f6tralize etmek genellikle zordur, \u00e7\u00fcnk\u00fc genellikle ara\u015ft\u0131rmac\u0131 bir ara de\u011fi\u015fkeni etkileme yetene\u011fine sahip de\u011fildir.<\/p>\n

    Dolay\u0131s\u0131yla kontrol edilmesi zor olsa bile en az\u0131ndan araya giren de\u011fi\u015fkenlerin etkisini en aza indirmeye \u00e7al\u0131\u015fmal\u0131y\u0131z. Baz\u0131 durumlarda, d\u0131\u015f ko\u015fullar\u0131n pratikte elde edilen sonu\u00e7lar\u0131 etkilemedi\u011fi sa\u011flam bir istatistiksel model tasarlanabilir.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Bu makalede ara de\u011fi\u015fkenlerin ne oldu\u011fu a\u00e7\u0131klanmaktad\u0131r. Bu nedenle, m\u00fcdahale eden de\u011fi\u015fkenin anlam\u0131n\u0131, m\u00fcdahale eden de\u011fi\u015fkenlerin \u00f6rneklerini ve di\u011fer de\u011fi\u015fken t\u00fcrleriyle aras\u0131ndaki fark\u0131 bulacaks\u0131n\u0131z. Ara de\u011fi\u015fken nedir? \u0130statistikte, ara de\u011fi\u015fken , ba\u011f\u0131ml\u0131 de\u011fi\u015fken ile ba\u011f\u0131ms\u0131z de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi etkileyen ancak manip\u00fcle edilemeyen bir de\u011fi\u015fkendir. Dolay\u0131s\u0131yla bir ara de\u011fi\u015fken bir anketin sonu\u00e7lar\u0131n\u0131 etkileyebilir. Araya giren bir […]<\/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-180","post","type-post","status-publish","format-standard","hentry","category-istatistik"],"yoast_head":"\n\u25b7 Ara de\u011fi\u015fken nedir? 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