{"id":633,"date":"2023-07-29T06:40:35","date_gmt":"2023-07-29T06:40:35","guid":{"rendered":"https:\/\/statorials.org\/tr\/friedman-test-istatistigi\/"},"modified":"2023-07-29T06:40:35","modified_gmt":"2023-07-29T06:40:35","slug":"friedman-test-istatistigi","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/friedman-test-istatistigi\/","title":{"rendered":"Stata'da friedman testi nas\u0131l yap\u0131l\u0131r?"},"content":{"rendered":"

<\/p>\n

\n

Friedman testi,<\/strong> tekrarlanan ANOVA \u00f6l\u00e7\u00fcmlerine<\/a> parametrik olmayan bir alternatiftir. Her grupta ayn\u0131 deneklerin yer ald\u0131\u011f\u0131 \u00fc\u00e7 veya daha fazla grubun ortalamalar\u0131 aras\u0131nda istatistiksel olarak anlaml\u0131 bir fark olup olmad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in kullan\u0131l\u0131r.<\/span><\/p>\n

Bu e\u011fitimde Stata’da Friedman testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r.<\/span><\/p>\n

\u00d6rnek: Stata’daki Friedman testi<\/strong><\/span><\/h2>\n

Bu \u00f6rnek i\u00e7in, d\u00f6rt farkl\u0131 ila\u00e7 kullanan be\u015f hastan\u0131n tepki s\u00fcresini g\u00f6steren t43<\/em> veri k\u00fcmesini kullanaca\u011f\u0131z. Her hasta d\u00f6rt ilac\u0131n her birinde \u00f6l\u00e7\u00fcld\u00fc\u011f\u00fcnden, ortalama reaksiyon s\u00fcresinin ila\u00e7lar aras\u0131nda farkl\u0131l\u0131k g\u00f6sterip g\u00f6stermedi\u011fini belirlemek i\u00e7in Friedman testini kullanaca\u011f\u0131z.<\/span><\/p>\n

Friedman testini ger\u00e7ekle\u015ftirmek i\u00e7in a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 izleyin:<\/span><\/p>\n

Ad\u0131m 1: Verileri y\u00fckleyin ve g\u00f6r\u00fcnt\u00fcleyin.<\/strong><\/span><\/p>\n

Verileri Stata’ya y\u00fcklemek i\u00e7in a\u015fa\u011f\u0131daki komutu kullan\u0131n:<\/span><\/p>\n

\n

https:\/\/www.stata-press.com\/data\/r14\/t43 adresini kullan\u0131n<\/strong><\/span><\/p>\n<\/blockquote>\n

A\u015fa\u011f\u0131daki komutu kullanarak ham verileri g\u00f6r\u00fcnt\u00fcleyin:<\/span><\/p>\n

\n

br<\/span><\/strong> <\/p>\n<\/blockquote>\n

\"Stata'daki<\/p>\n

Ad\u0131m 2: emh paketini y\u00fckleyin.<\/strong><\/span><\/p>\n

Friedman testini ger\u00e7ekle\u015ftirmek i\u00e7in Stata’da \u00f6nceden kurulmam\u0131\u015f olan emh<\/strong> paketini kurmam\u0131z gerekecek. Y\u00fcklemek i\u00e7in a\u015fa\u011f\u0131daki komutu yazman\u0131z yeterlidir:<\/span><\/p>\n

\n

ssc emh’yi y\u00fckle<\/strong><\/span><\/p>\n<\/blockquote>\n

Birka\u00e7 saniye i\u00e7inde otomatik olarak kurulmal\u0131d\u0131r.<\/span><\/p>\n

Ad\u0131m 3: Friedman testini ger\u00e7ekle\u015ftirin.<\/strong><\/span><\/p>\n

Emh<\/strong> paketi kurulduktan sonra Friedman testini a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanarak ger\u00e7ekle\u015ftirebiliriz:<\/span><\/p>\n

emh yan\u0131t de\u011fi\u015fkeni a\u00e7\u0131klay\u0131c\u0131_de\u011fi\u015fken, katmanlar (tekrarlanan de\u011fi\u015fken) anova d\u00f6n\u00fc\u015f\u00fcm\u00fc (s\u0131ralama)<\/strong><\/span><\/p>\n

Bizim durumumuzda a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanaca\u011f\u0131z:<\/span><\/p>\n

\n

ila\u00e7 emh puan\u0131, tabaka (ki\u015fi) anova d\u00f6n\u00fc\u015f\u00fcm\u00fc (s\u0131ralama)<\/strong><\/span> <\/p>\n<\/blockquote>\n

\"Stata'da<\/p>\n

Sonucun nas\u0131l yorumlanaca\u011f\u0131 a\u015fa\u011f\u0131da a\u00e7\u0131klanm\u0131\u015ft\u0131r:<\/span><\/p>\n

\u00c7(3) =<\/strong> 13,5600.<\/strong> Bu Friedman test istatisti\u011fidir.<\/span><\/p>\n

P = 0,0036<\/strong> . Bu, test istatisti\u011fiyle ili\u015fkili p de\u011feridir. Bu de\u011fer 0,05’ten k\u00fc\u00e7\u00fck oldu\u011fundan, ortalama yan\u0131t s\u00fcresinin d\u00f6rt ilac\u0131n t\u00fcm\u00fc i\u00e7in ayn\u0131 oldu\u011fu y\u00f6n\u00fcndeki s\u0131f\u0131r hipotezini reddedebiliriz. Kullan\u0131lan ila\u00e7 t\u00fcr\u00fcn\u00fcn yan\u0131t s\u00fcresinde istatistiksel olarak anlaml\u0131 farkl\u0131l\u0131klara yol a\u00e7t\u0131\u011f\u0131 sonucuna varmak i\u00e7in yeterli kan\u0131t\u0131m\u0131z var.<\/span><\/p>\n

Ad\u0131m 4: Sonu\u00e7lar\u0131 rapor edin.<\/strong><\/span><\/p>\n

Son olarak test sonu\u00e7lar\u0131n\u0131 bildirmek istiyoruz. \u0130\u015fte bunun nas\u0131l yap\u0131laca\u011f\u0131na dair bir \u00f6rnek:<\/span><\/p>\n

\n

D\u00f6rt farkl\u0131 ilac\u0131n tepki s\u00fcresi \u00fczerindeki etkisini incelemek i\u00e7in 5 ki\u015fi \u00fczerinde Friedman testi yap\u0131ld\u0131. Her birey her ilac\u0131 bir kez kulland\u0131.<\/span><\/p>\n

Sonu\u00e7lar, kullan\u0131lan ila\u00e7 t\u00fcr\u00fcn\u00fcn yan\u0131t s\u00fcresinde istatistiksel olarak anlaml\u0131 farkl\u0131l\u0131klara yol a\u00e7t\u0131\u011f\u0131n\u0131 g\u00f6sterdi (Q(3) = 13,56, p = 0,0036).<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Friedman testi, tekrarlanan ANOVA \u00f6l\u00e7\u00fcmlerine parametrik olmayan bir alternatiftir. Her grupta ayn\u0131 deneklerin yer ald\u0131\u011f\u0131 \u00fc\u00e7 veya daha fazla grubun ortalamalar\u0131 aras\u0131nda istatistiksel olarak anlaml\u0131 bir fark olup olmad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in kullan\u0131l\u0131r. Bu e\u011fitimde Stata’da Friedman testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r. \u00d6rnek: Stata’daki Friedman testi Bu \u00f6rnek i\u00e7in, d\u00f6rt farkl\u0131 ila\u00e7 kullanan be\u015f hastan\u0131n tepki s\u00fcresini […]<\/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-633","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\nStata'da Friedman testi nas\u0131l yap\u0131l\u0131r - Statorials<\/title>\n<meta name=\"description\" content=\"Ad\u0131m ad\u0131m \u00f6rnek de dahil olmak \u00fczere Stata'da Friedman testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fine ili\u015fkin basit bir a\u00e7\u0131klama.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/tr\/friedman-test-istatistigi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stata'da Friedman testi nas\u0131l yap\u0131l\u0131r - 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