{"id":790066,"date":"2022-11-20T11:00:22","date_gmt":"2022-11-20T11:00:22","guid":{"rendered":"https:\/\/www.questionpro.com\/blog\/ki-kare-testi-nedir-ve-nasil-hesaplanir\/"},"modified":"2022-11-20T11:00:22","modified_gmt":"2022-11-20T11:00:22","slug":"ki-kare-testi-nedir-ve-nasil-hesaplanir","status":"publish","type":"post","link":"https:\/\/qa-release.questionpro.com\/blog\/tr\/ki-kare-testi-nedir-ve-nasil-hesaplanir\/","title":{"rendered":"Ki-kare testi: Nedir ve Nas\u0131l Hesaplan\u0131r"},"content":{"rendered":"
Ki-kare testi genellikle Fisher’in kesin testi olarak adland\u0131r\u0131l\u0131r. Kategorik verileri incelemek i\u00e7in kullan\u0131lan istatistiksel bir testtir. Bu makale<\/span> ki-kare testini ve nas\u0131l hesaplanaca\u011f\u0131n\u0131 a\u00e7\u0131klayacakt\u0131r.<\/span><\/p>\n Ki-kare testi, bir veya daha fazla kategoride beklenen ile g\u00f6r\u00fclen aras\u0131ndaki farklar\u0131 belirlemenin istatistiksel bir yoludur.<\/span><\/p>\n Ara\u015ft\u0131rmac\u0131lar bu parametrik olmayan testi, ayn\u0131 \u00f6rneklem pop\u00fclasyonu i\u00e7indeki kategorik de\u011fi\u015fkenleri kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in kullanmaktad\u0131r. Ayr\u0131ca frekans say\u0131mlar\u0131n\u0131n do\u011frulanmas\u0131na veya arka plan\u0131n\u0131n olu\u015fturulmas\u0131na yard\u0131mc\u0131 olur.<\/span><\/p>\n Testin arkas\u0131ndaki temel fikir, bo\u015f hipotezin do\u011fru olmas\u0131 durumunda ne beklenece\u011fini belirlemek i\u00e7in ger\u00e7ek veri de\u011ferlerini incelemektir.<\/span><\/p>\n S\u0131kl\u0131kla kullan\u0131lan farkl\u0131 ki-kare test t\u00fcrleri vard\u0131r:<\/span><\/p>\n Ba\u011f\u0131ms\u0131zl\u0131k testi ayn\u0131 pop\u00fclasyon i\u00e7indeki iki kategorik de\u011fi\u015fken aras\u0131nda bir ba\u011flant\u0131 ararken, homojenlik testi bir de\u011fi\u015fkenin da\u011f\u0131l\u0131m\u0131n\u0131n pop\u00fclasyonlar aras\u0131nda ayn\u0131 olup olmad\u0131\u011f\u0131n\u0131 kontrol eder.<\/span><\/p>\n Ki-kare testi, iki kategorik de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi anlamay\u0131 ve analiz etmeyi kolayla\u015ft\u0131r\u0131r. Bu testin ara\u015ft\u0131rma i\u00e7in yararl\u0131l\u0131\u011f\u0131n\u0131 inceleyelim.<\/span><\/p>\n Art\u0131k Ki-Kare testine daha a\u015fina oldu\u011funuza g\u00f6re, size nas\u0131l yap\u0131laca\u011f\u0131n\u0131 g\u00f6sterelim:<\/span><\/p>\n Ki-kare testi, g\u00f6zlenen de\u011fer ile beklenen de\u011ferin herhangi bir \u015fekilde farkl\u0131l\u0131k g\u00f6sterip g\u00f6stermedi\u011fini belirlemek i\u00e7in kullan\u0131l\u0131r. Ki-kare form\u00fcl\u00fc a\u015fa\u011f\u0131daki \u015fekilde g\u00f6sterilir;<\/span><\/p>\n X<\/b>2<\/b> = \u2211<\/b>(O – E)<\/b>2<\/b>\/E<\/b><\/p>\n \u0130\u015fte,<\/span><\/p>\n Kategorik verilere bir \u00f6rnek olarak A, B, C ve D olmak \u00fczere d\u00f6rt mahalleye b\u00f6l\u00fcnm\u00fc\u015f 2000 sakini olan bir topluma bakal\u0131m.<\/span><\/p>\n Kamu, \u00f6zel sekt\u00f6r ve doktorlarda \u00e7al\u0131\u015fan 1300 \u00fcye rastgele se\u00e7ilmi\u015ftir. S\u0131f\u0131r hipotezine g\u00f6re, bir ki\u015finin mesleki b\u00f6l\u00fcm\u00fc ile ikamet etti\u011fi mahalle aras\u0131nda bir ili\u015fki yoktur. Bilgiler \u015fu b\u00f6l\u00fcmlere ayr\u0131lm\u0131\u015ft\u0131r<\/span><\/p>\n A mahallesinde 2.000 ki\u015finin y\u00fczde ka\u00e7\u0131n\u0131n ikamet etti\u011fini belirlemek i\u00e7in, 300 ki\u015filik \u00f6rnek n\u00fcfusun A b\u00f6lgesinde oldu\u011funu varsay\u0131n.<\/span><\/p>\n Benzer \u015fekilde, 2.000 ki\u015finin ne kadar\u0131n\u0131n kamu \u00e7al\u0131\u015fanlar\u0131ndan olu\u015ftu\u011funu belirlemek i\u00e7in 698\/1300 oran\u0131n\u0131 al\u0131yoruz. Hipotezdeki ba\u011f\u0131ms\u0131zl\u0131k varsay\u0131m\u0131na g\u00f6re, A mahallesinde a\u015fa\u011f\u0131daki say\u0131da kamu \u00e7al\u0131\u015fan\u0131 olmas\u0131n\u0131 “beklemeliyiz”: 300 x (698 \/ 1300) = 161.08<\/span><\/p>\n Dolay\u0131s\u0131yla, s\u00f6z konusu tablo h\u00fccresi A i\u00e7in ki-kare testi form\u00fcl\u00fcn\u00fc kullanarak \u015funu elde ederiz;<\/span><\/p>\n (G\u00f6zlenen de\u011fer – Beklenen de\u011fer)<\/span>2<\/span> \/ Beklenen de\u011fer = (180 – 161,08)<\/span>2 <\/span>\/ 161.08 = 2.22<\/span><\/p>\n Bu b\u00f6l\u00fcmde ki-kare testini ve bu testin nas\u0131l yap\u0131l\u0131p hesaplanaca\u011f\u0131n\u0131 inceledik. Kategorik de\u011fi\u015fkenlere uyguland\u0131\u011f\u0131 i\u00e7in ki-kare testi en yayg\u0131n olarak anket yan\u0131t verilerini inceleyen ara\u015ft\u0131rmac\u0131lar taraf\u0131ndan kullan\u0131l\u0131r. Bu ara\u015ft\u0131rma demografi, t\u00fcketici ve pazarlama ara\u015ft\u0131rmalar\u0131, siyaset bilimi ve ekonomiyi i\u00e7ermektedir.<\/span><\/p>\n QuestionPro ara\u015ft\u0131rma paketi, ara\u015ft\u0131rma ve de\u011fi\u015fim deneyimlerinden en iyi \u015fekilde yararlanmak i\u00e7in kullan\u0131labilecek bir dizi ara\u00e7t\u0131r. QuestionPro’da, her t\u00fcrl\u00fc uzun vadeli ara\u015ft\u0131rma i\u00e7in anket yaz\u0131l\u0131m\u0131m\u0131z ve i\u00e7g\u00f6r\u00fc havuzlar\u0131m\u0131z gibi her t\u00fcrl\u00fc ara\u015ft\u0131rmac\u0131ya veri toplama ara\u00e7lar\u0131 sunuyoruz.<\/span><\/p>\n Veriye dayal\u0131 kararlar\u0131n nas\u0131l al\u0131naca\u011f\u0131 konusunda yard\u0131ma ihtiyac\u0131n\u0131z varsa QuestionPro uzman ekibiyle g\u00f6r\u00fc\u015f\u00fcn. QuestionPro, verilerinizden en iyi \u015fekilde yararlanman\u0131za yard\u0131mc\u0131 olabilir ve s\u00fcre\u00e7 boyunca size rehberlik edebilir. \u00dccretsiz bir hesap olu\u015fturun veya neye ihtiyac\u0131n\u0131z oldu\u011funu bize bildirin!<\/span><\/p>\nKi-kare testi nedir?<\/span><\/h2>\n
Ki-kare testi t\u00fcrleri<\/span><\/h2>\n
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Ara\u015ft\u0131rmada ki-kare testi<\/span><\/h2>\n
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Ki-Kare testi Y\u00f6nergeleri uygulay\u0131n<\/span><\/h2>\n
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Ki-kare nas\u0131l hesaplan\u0131r: Form\u00fcl<\/span><\/h2>\n
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Kategorik veriler i\u00e7in Ki-Kare testi \u00f6rne\u011fi<\/span><\/h2>\n
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\n Kategoriler<\/span><\/td>\n A<\/span><\/td>\n B<\/span><\/td>\n C<\/span><\/td>\n D<\/span><\/td>\n Toplam<\/span><\/td>\n<\/tr>\n \n Devlet hizmeti<\/span><\/td>\n 180<\/span><\/td>\n 120<\/span><\/td>\n 208<\/span><\/td>\n 190<\/span><\/td>\n 698<\/span><\/td>\n<\/tr>\n \n \u00d6zel Servis<\/span><\/td>\n 60<\/span><\/td>\n 100<\/span><\/td>\n 102<\/span><\/td>\n 40<\/span><\/td>\n 302<\/span><\/td>\n<\/tr>\n \n Doktor<\/span><\/td>\n 60<\/span><\/td>\n 80<\/span><\/td>\n 90<\/span><\/td>\n 70<\/span><\/td>\n 300<\/span><\/td>\n<\/tr>\n \n Toplam<\/span><\/td>\n 300<\/span><\/td>\n 300<\/span><\/td>\n 400<\/span><\/td>\n 300<\/span><\/td>\n 1300<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Sonu\u00e7<\/span><\/h2>\n