{"id":1041,"date":"2023-07-27T21:25:19","date_gmt":"2023-07-27T21:25:19","guid":{"rendered":"https:\/\/statorials.org\/tr\/oncul-degisken\/"},"modified":"2023-07-27T21:25:19","modified_gmt":"2023-07-27T21:25:19","slug":"oncul-degisken","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/oncul-degisken\/","title":{"rendered":"\u00d6nc\u00fcl de\u011fi\u015fken nedir? (a\u00e7\u0131klama & \u00f6rnek)"},"content":{"rendered":"

<\/p>\n

\n

\u0130statistikte ara\u015ft\u0131rmac\u0131lar genellikle ba\u011f\u0131ms\u0131z de\u011fi\u015fken ile ba\u011f\u0131ml\u0131 de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi anlamak isterler.<\/span> <\/p>\n

\"\"<\/p>\n

Ancak bazen \u00f6nc\u00fcl bir de\u011fi\u015fken<\/strong> mevcut olabilir.<\/span><\/p>\n

\n

\u00d6nc\u00fcl de\u011fi\u015fken,<\/strong> incelenen ba\u011f\u0131ms\u0131z ve ba\u011f\u0131ml\u0131 de\u011fi\u015fkenlerden \u00f6nce<\/em> ortaya \u00e7\u0131kan ve ikisi aras\u0131ndaki ili\u015fkiyi a\u00e7\u0131klamaya yard\u0131mc\u0131 olabilecek bir de\u011fi\u015fkendir.<\/span> <\/p>\n<\/blockquote>\n

\"De\u011fi\u015fken<\/p>\n

Bu tan\u0131m\u0131, \u00f6nc\u00fcl<\/em> kelimesinin kelimenin tam anlam\u0131yla “\u00f6nceki veya \u00f6nceden var olan” anlam\u0131na geldi\u011fini hat\u0131rlayarak hat\u0131rlayabilirsiniz.<\/span><\/p>\n

\u00d6nceki de\u011fi\u015fkenlere \u00f6rnekler<\/strong><\/span><\/h3>\n

\u00d6nceki de\u011fi\u015fkenler \u00e7e\u015fitli ara\u015ft\u0131rma senaryolar\u0131nda mevcut olabilir. \u0130\u015fte baz\u0131 \u00f6rnekler:<\/span><\/p>\n

\u00d6rnek 1: Ya\u015f ve gelir<\/strong><\/span><\/p>\n

Ara\u015ft\u0131rmac\u0131lar\u0131n ya\u015f ile y\u0131ll\u0131k gelir aras\u0131ndaki ili\u015fkiyi incelemek istediklerini varsayal\u0131m. Bununla birlikte, g\u00f6z \u00f6n\u00fcnde bulundurulmas\u0131 gereken iki de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi a\u00e7\u0131klamaya (veya k\u0131smen a\u00e7\u0131klamaya) yard\u0131mc\u0131 olabilecek bir \u00f6nc\u00fcl de\u011fi\u015fken, ya\u015f ve gelirle bir korelasyona sahip olma e\u011filiminde oldu\u011fundan e\u011fitim d\u00fczeyidir<\/em> .<\/span> <\/p>\n

\"\u00d6nceki<\/p>\n

\u00d6rnek 2: Meditasyon ve mutluluk<\/strong><\/span><\/p>\n

Diyelim ki ara\u015ft\u0131rmac\u0131lar meditasyon ile bildirilen mutluluk d\u00fczeyleri aras\u0131ndaki ili\u015fkiyi incelemek istiyor. Bununla birlikte, dikkate al\u0131nmas\u0131 gereken iki de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi a\u00e7\u0131klamaya (veya k\u0131smen a\u00e7\u0131klamaya) yard\u0131mc\u0131 olabilecek bir \u00f6nc\u00fcl de\u011fi\u015fken, hem meditasyon i\u00e7in mevcut bo\u015f zaman hem de beyan edilen mutluluk \u00fczerinde etkiye sahip olabilece\u011finden i\u015f stresidir<\/em> .<\/span> <\/p>\n

\"\u0130statistikte<\/p>\n

\u00d6nceki de\u011fi\u015fkenler nas\u0131l kontrol edilir<\/strong><\/span><\/h3>\n

Bir deneyde ara\u015ft\u0131rmac\u0131lar, \u00f6nc\u00fcl de\u011fi\u015fkenleri engelleyici fakt\u00f6rler<\/a> olarak kullanarak potansiyel olarak kontrol edebilirler. \u00d6rne\u011fin, kat\u0131l\u0131mc\u0131lar\u0131 e\u011fitim d\u00fczeylerine g\u00f6re “bloklara” ay\u0131rabilirler, ard\u0131ndan her blok i\u00e7in ya\u015f ile gelir aras\u0131ndaki ili\u015fkiyi inceleyebilirler.<\/span><\/p>\n

Regresyon analizinde ara\u015ft\u0131rmac\u0131lar, etkilerini kontrol etmek i\u00e7in \u00f6nc\u00fcl de\u011fi\u015fkenleri bir regresyon modeline dahil edebilirler. \u00d6rne\u011fin ara\u015ft\u0131rmac\u0131lar, regresyon modeline e\u011fitim d\u00fczeyini bir de\u011fi\u015fken olarak dahil edebilir, b\u00f6ylece ya\u015f i\u00e7in regresyon katsay\u0131s\u0131,<\/a> e\u011fitim d\u00fczeyi sabit tutularak gelirdeki ortalama de\u011fi\u015fim olarak yorumlanabilir.<\/span><\/p>\n

Bu senaryolar\u0131n her ikisinde de, bu \u00f6nc\u00fcl de\u011fi\u015fkenler i\u00e7in verilerin haz\u0131r oldu\u011fu varsay\u0131lmaktad\u0131r, ancak bu her zaman ge\u00e7erli de\u011fildir. \u00d6rne\u011fin, ki\u015finin meditasyon yapma ve mutluluk bildirme yetene\u011fini etkileyebilecek \u00f6nc\u00fcl bir de\u011fi\u015fken olabilece\u011fini bilmemize ra\u011fmen “i\u015f stresini” \u00f6l\u00e7mek zor olabilir.<\/span><\/p>\n

\u0130li\u015fkili de\u011fi\u015fkenler<\/strong><\/span><\/h3>\n

\u00d6nceki de\u011fi\u015fkenlere benzeyen ve ba\u011f\u0131ms\u0131z de\u011fi\u015fken ile ba\u011f\u0131ml\u0131 de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi de etkileyebilen iki de\u011fi\u015fken \u015funlar\u0131 i\u00e7erir:<\/span><\/p>\n

1.<\/strong> D\u0131\u015fsal de\u011fi\u015fkenler<\/a> : Bir \u00e7al\u0131\u015fman\u0131n ilgi alan\u0131 olmayan ancak hem ba\u011f\u0131ms\u0131z hem de ba\u011f\u0131ml\u0131 de\u011fi\u015fkenleri etkileyebilen de\u011fi\u015fkenler.<\/span><\/p>\n

2.<\/strong> Ara de\u011fi\u015fkenler<\/a> : Ba\u011f\u0131ms\u0131z ve ba\u011f\u0131ml\u0131 de\u011fi\u015fkenler aras\u0131nda ba\u011flant\u0131 kuran ve ikisi aras\u0131ndaki ili\u015fki \u00fczerinde do\u011frudan etkisi olan de\u011fi\u015fkenler.<\/span><\/p>\n

Bir deney veya \u00e7al\u0131\u015fma y\u00fcr\u00fct\u00fcrken bu t\u00fcr de\u011fi\u015fkenlerin her birine kar\u015f\u0131 dikkatli olun.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u0130statistikte ara\u015ft\u0131rmac\u0131lar genellikle ba\u011f\u0131ms\u0131z de\u011fi\u015fken ile ba\u011f\u0131ml\u0131 de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi anlamak isterler. Ancak bazen \u00f6nc\u00fcl bir de\u011fi\u015fken mevcut olabilir. \u00d6nc\u00fcl de\u011fi\u015fken, incelenen ba\u011f\u0131ms\u0131z ve ba\u011f\u0131ml\u0131 de\u011fi\u015fkenlerden \u00f6nce ortaya \u00e7\u0131kan ve ikisi aras\u0131ndaki ili\u015fkiyi a\u00e7\u0131klamaya yard\u0131mc\u0131 olabilecek bir de\u011fi\u015fkendir. Bu tan\u0131m\u0131, \u00f6nc\u00fcl kelimesinin kelimenin tam anlam\u0131yla “\u00f6nceki veya \u00f6nceden var olan” anlam\u0131na geldi\u011fini hat\u0131rlayarak hat\u0131rlayabilirsiniz. \u00d6nceki […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1041","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n\u00f6nc\u00fcl de\u011fi\u015fken nedir? 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