{"id":75,"date":"2023-10-19T21:46:57","date_gmt":"2023-10-19T12:46:57","guid":{"rendered":"https:\/\/best-biostatistics.com\/toukei-er\/entry\/sample-size-calculation-for-paired-t-test-in-gpower\/"},"modified":"2024-08-29T20:00:12","modified_gmt":"2024-08-29T11:00:12","slug":"sample-size-calculation-for-paired-t-test-in-gpower","status":"publish","type":"post","link":"https:\/\/best-biostatistics.com\/toukei-er\/entry\/sample-size-calculation-for-paired-t-test-in-gpower\/","title":{"rendered":"G*Power \u3067\u5bfe\u5fdc\u306e\u3042\u308b t \u691c\u5b9a\u306b\u5fc5\u8981\u306a\u30b5\u30f3\u30d7\u30eb\u6570\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"\n<p>GPower \u306f\u3001\u30b5\u30f3\u30d7\u30eb\u6570\u3092\u8a08\u7b97\u3059\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3042\u308b<\/p>\n\n\n\n<p>\u4e8b\u5f8c\u691c\u51fa\u529b\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b<\/p>\n\n\n\n<p>\u5bfe\u5fdc\u306e\u3042\u308b t \u691c\u5b9a\u306e\u5834\u5408\u306e\u4f7f\u3044\u65b9\u3092\u7d39\u4ecb<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"GPower-\u3067-\u5bfe\u5fdc\u306e\u3042\u308b-t-\u691c\u5b9a\u306e\u30b5\u30f3\u30d7\u30eb\u6570\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\">GPower \u3067 \u5bfe\u5fdc\u306e\u3042\u308b t \u691c\u5b9a\u306e\u30b5\u30f3\u30d7\u30eb\u6570\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u5bfe\u5fdc\u306e\u3042\u308b t \u691c\u5b9a\u3092\u4f7f\u3063\u3066\u3001\u540c\u3058\u4eba\u304b\u3089 2 \u56de\u6e2c\u5b9a\u3057\u3066\u3001\u305d\u306e\u5dee\u3092\u691c\u5b9a\u3059\u308b\u5834\u5408\u3092\u8003\u3048\u308b<\/p>\n\n\n\n<p>GPower \u306f\u3001\u4ee5\u4e0b\u306e\u9ec4\u8272\u30cf\u30a4\u30e9\u30a4\u30c8\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"606\" height=\"731\" src=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211434.png\" alt=\"\" class=\"wp-image-893\" title=\"\" srcset=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211434.png 606w, https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211434-249x300.png 249w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/figure>\n\n\n\n<p><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><\/span><\/p>\n\n\n\n<p>\u554f\u984c\u306f\u3001\u8d64\u77e2\u5370\u306e Effect size \u3068\u601d\u3046<\/p>\n\n\n\n<p>Effect size 0.5 \u3068\u3044\u3046\u306e\u306f\u30012 \u56de\u306e\u5dee\u306e\u5e73\u5747\u5024\u304c \u4f8b\u3048\u3070 5 \u3060\u3068\u3057\u3066\u3001\u6a19\u6e96\u504f\u5dee\u304c 10 \u306e\u6642\u306b 5 \/ 10 = 0.5 \u3068\u4e88\u60f3\u3055\u308c\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u3042\u308b<\/p>\n\n\n\n<p>\u3053\u308c\u3067\u8a08\u7b97\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b 34 \u4f8b\u5fc5\u8981\u3068\u8a08\u7b97\u3055\u308c\u308b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"606\" height=\"731\" src=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211704.png\" alt=\"\" class=\"wp-image-894\" title=\"\" srcset=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211704.png 606w, https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211704-249x300.png 249w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/figure>\n\n\n\n<p><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Effect-size-\u306e\u6163\u4f8b\">Effect size \u306e\u6163\u4f8b<\/h2>\n\n\n\n<p>\u5148\u884c\u7814\u7a76\u3084\u30d1\u30a4\u30ed\u30c3\u30c8\u7814\u7a76\u304b\u3089\u5dee\u306e\u5e73\u5747\u5024\u3084\u6a19\u6e96\u504f\u5dee\u304c\u5f97\u3089\u308c\u306a\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u6163\u4f8b\u7684\u306a Effect size \u304c\u5229\u7528\u53ef\u80fd\u3067\u3042\u308b<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Effect size<\/th><th>d<\/th><\/tr><\/thead><tbody><tr><td>small<\/td><td>0.2<\/td><\/tr><tr><td>medium<\/td><td>0.5<\/td><\/tr><tr><td>large<\/td><td>0.8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>0.2 \u3068\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b 199 \u4f8b\u5fc5\u8981\u3068\u8a08\u7b97\u3055\u308c\u308b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"606\" height=\"731\" src=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211905.png\" alt=\"\" class=\"wp-image-896\" title=\"\" srcset=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211905.png 606w, https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211905-249x300.png 249w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/figure>\n\n\n\n<p><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><\/span><\/p>\n\n\n\n<p>0.5 \u306f\u3001\u4e0a\u8a18\u306e\u3068\u304a\u308a 34 \u4f8b\u3067\u3042\u308b<\/p>\n\n\n\n<p>0.8 \u3068\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b 15 \u4f8b\u5fc5\u8981\u3068\u306a\u308b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"606\" height=\"731\" src=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211950.png\" alt=\"\" class=\"wp-image-897\" title=\"\" srcset=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211950.png 606w, https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211950-249x300.png 249w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/figure>\n\n\n\n<p><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><\/span><\/p>\n\n\n\n<div id=\"biost-1678139015\" class=\"biost- biost-entity-placement\"><p style=\"text-align: center;\"><span style=\"font-size: 20px;\"><strong><a href=\"https:\/\/best-biostatistics.com\/kmhl\">\uff1e\uff1e\u3082\u3046\u7d71\u8a08\u3067\u60a9\u3080\u306e\u306f\u7d42\u308f\u308a\u306b\u3057\u307e\u305b\u3093\u304b\uff1f\u00a0<\/a><\/strong><\/span><\/p>\r\n<a href=\"https:\/\/best-biostatistics.com\/kmhl\"><img class=\"aligncenter wp-image-2794 size-full\" src=\"https:\/\/best-biostatistics.com\/wp\/wp-content\/uploads\/2023\/11\/bn_r_03.png\" alt=\"\" width=\"500\" height=\"327\" \/><\/a>\r\n<p style=\"text-align: center;\"><span style=\"color: #ff0000; font-size: 20px;\"><strong><span class=\"marker2\">\u21911\u4e07\u4eba\u4ee5\u4e0a\u306e\u533b\u7642\u5f93\u4e8b\u8005\u304c\u8cfc\u8aad\u4e2d<\/span><\/strong><\/span><\/p><\/div><h2 class=\"wp-block-heading\" id=\"\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u306e\u8a18\u8ff0\u4f8b\">\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u306e\u8a18\u8ff0\u4f8b<\/h2>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u8ad6\u6587\u306e\u65b9\u6cd5\u306e\u7ae0\u306e\u7d71\u8a08\u89e3\u6790\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u308b<\/p>\n\n\n\n<p>\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u8a08\u7b97\u306f\u3001G*Power 3.1.9.7 \u3067\u884c\u3063\u305f\uff08<a href=\"https:\/\/www.psychologie.hhu.de\/arbeitsgruppen\/allgemeine-psychologie-und-arbeitspsychologie\/gpower\">Faul 2007, Faul 2009<\/a>\uff09\u5bfe\u5fdc\u306e\u3042\u308b t \u691c\u5b9a\u3092\u3001\u4e21\u5074\u691c\u5b9a\u3067\u5b9f\u65bd\u3057\u3001\u52b9\u679c\u91cf 0.5\u3001\u6709\u610f\u6c34\u6e96 5 %\u3001\u691c\u51fa\u529b 80 \uff05 \u3068\u3057\u305f\u3068\u304d\u306b\u3001\u5fc5\u8981\u30b5\u30f3\u30d7\u30eb\u30b5\u30a4\u30ba\u306f 34 \u4f8b\u3068\u8a08\u7b97\u3055\u308c\u305f\u3002<\/p>\n\n\n\n<p>The sample size calculation was performed using G*Power 3.1.9.7 (<a href=\"https:\/\/www.psychologie.hhu.de\/arbeitsgruppen\/allgemeine-psychologie-und-arbeitspsychologie\/gpower\">Faul 2007, Faul 2009<\/a>) . Assuming a two-tailed paired t-test with a effect size of 0.5, a significance level of 5%, and a power of 80%, the required sample size was calculated to be 34 cases.<\/p>\n\n\n\n<p>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u52b9\u679c\u91cf\u3092\u3069\u306e\u3088\u3046\u306b\u898b\u7a4d\u3082\u3063\u305f\u304b\u3001\u52a0\u7b46\u3057\u3066\u3082\u3088\u3044\u3060\u308d\u3046<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u4e8b\u5f8c\u691c\u51fa\u529b\u306e\u8a08\u7b97\">\u4e8b\u5f8c\u691c\u51fa\u529b\u306e\u8a08\u7b97<\/h2>\n\n\n\n<p>\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u3066\u7d71\u8a08\u89e3\u6790\u3092\u884c\u3046\u3082\u3001\u7d71\u8a08\u5b66\u7684\u6709\u610f\u3068\u306a\u3089\u306a\u304b\u3063\u305f\u5834\u5408\u3001\u4e8b\u5f8c\u691c\u51fa\u529b\u3092\u6c42\u3081\u3089\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3060\u308d\u3046<\/p>\n\n\n\n<p>\u305d\u306e\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"606\" height=\"731\" src=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019213325.png\" alt=\"\" class=\"wp-image-898\" title=\"\" srcset=\"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019213325.png 606w, https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019213325-249x300.png 249w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/figure>\n\n\n\n<p><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><\/span><\/p>\n\n\n\n<p>Type of power analysis \u3092 Post hoc \u306b\u5909\u66f4\u3059\u308b<\/p>\n\n\n\n<p>Effect size \u304c 0.5 \u3067\u3042\u308b\u304c\u3001\u30b5\u30f3\u30d7\u30eb\u6570\u304c 15 \u3057\u304b\u96c6\u307e\u3089\u306a\u304f\u3001\u7d71\u8a08\u5b66\u7684\u6709\u610f\u3067\u3082\u306a\u304b\u3063\u305f\u5834\u5408\u3001\u4e8b\u5f8c\u7684\u306b\u8a08\u7b97\u3057\u305f\u691c\u51fa\u529b\u306f\u30010.4379267 \u3067 \u7d04 44 \uff05 \u3067\u3042\u3063\u305f\u3068\u8a08\u7b97\u3055\u308c\u308b<\/p>\n\n\n\n<p>\u672c\u6765\u300180 \uff05 \u304c\u671b\u307e\u3057\u3044\u306e\u3067\u300144 \uff05 \u3057\u304b\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u691c\u51fa\u3067\u304d\u306a\u304b\u3063\u305f\u3068\u8003\u5bdf\u3067\u304d\u308b\u3060\u308d\u3046<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>G*Power \u3092\u4f7f\u3063\u3066\u3001\u5bfe\u5fdc\u306e\u3042\u308b t \u691c\u5b9a\u306e\u5fc5\u8981\u30b5\u30f3\u30d7\u30eb\u6570\u8a08\u7b97\u3001\u6163\u4f8b\u7684\u306a Effect size \u306e\u7d39\u4ecb\u3001\u8ad6\u6587\u3078\u306e\u8a18\u8ff0\u4f8b\u3001\u4e8b\u5f8c\u691c\u51fa\u529b\u306e\u8a08\u7b97\u3092\u7d39\u4ecb\u3057\u305f<\/p>\n\n\n\n<p>\u53c2\u8003\u306b\u306a\u308c\u3070<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"GPower-\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30b5\u30a4\u30c8\">G*Power \u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30b5\u30a4\u30c8<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.psychologie.hhu.de\/arbeitsgruppen\/allgemeine-psychologie-und-arbeitspsychologie\/gpower\">Universit\u00e4t D\u00fcsseldorf: G*Power<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>GPower \u306f\u3001\u30b5\u30f3\u30d7\u30eb\u6570\u3092\u8a08\u7b97\u3059\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3042\u308b \u4e8b\u5f8c\u691c\u51fa\u529b\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b \u5bfe\u5fdc\u306e\u3042\u308b t \u691c\u5b9a\u306e\u5834\u5408\u306e\u4f7f\u3044\u65b9\u3092\u7d39\u4ecb<\/p>\n","protected":false},"author":2,"featured_media":899,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[33,35,16,15],"tags":[],"class_list":["post-75","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gpower","category-t-","category-16","category-15"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/best-biostatistics.com\/toukei-er\/wp-content\/uploads\/2023\/10\/20231019211704_1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/posts\/75","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/comments?post=75"}],"version-history":[{"count":1,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/posts\/75\/revisions"}],"predecessor-version":[{"id":900,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/posts\/75\/revisions\/900"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/media\/899"}],"wp:attachment":[{"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/media?parent=75"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/categories?post=75"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/best-biostatistics.com\/toukei-er\/wp-json\/wp\/v2\/tags?post=75"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}