{"id":10100,"date":"2026-10-14T16:20:14","date_gmt":"2026-10-14T07:20:14","guid":{"rendered":"https:\/\/since2020.jp\/media\/?p=10100"},"modified":"2026-10-14T16:20:14","modified_gmt":"2026-10-14T07:20:14","slug":"propensity-score-analysis","status":"publish","type":"post","link":"https:\/\/since2020.jp\/media\/propensity-score-analysis\/","title":{"rendered":"\u89b3\u6e2c\u30c7\u30fc\u30bf\u304b\u3089\u56e0\u679c\u3092\u63a8\u5b9a\u2500\u2500\u50be\u5411\u30b9\u30b3\u30a2\u5206\u6790"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>\u30a4\u30f3\u30c8\u30ed\u30c0\u30af\u30b7\u30e7\u30f3<\/strong><\/h2>\n\n\n\n<p>\u300c\u30af\u30fc\u30dd\u30f3\u3092\u3082\u3089\u3063\u305f\u4eba\u306e\u307b\u3046\u304c\u3001\u305f\u304f\u3055\u3093\u8cb7\u3063\u3066\u3044\u308b\u300d\u3002\u3053\u308c\u306f\u3001\u30af\u30fc\u30dd\u30f3\u306e\u52b9\u679c\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n\n<p>\u305d\u3046\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30c1\u30fc\u30e0\u304c\u300c\u3082\u3068\u3082\u3068\u3088\u304f\u8cb7\u3063\u3066\u304f\u308c\u308b\u512a\u826f\u9867\u5ba2\u300d\u3092\u72d9\u3063\u3066\u914d\u3063\u3066\u3044\u305f\u5834\u5408\u3001\u30af\u30fc\u30dd\u30f3\u3092\u3082\u3089\u3063\u305f\u4eba\u306f\u3001\u30af\u30fc\u30dd\u30f3\u304c\u306a\u304f\u3066\u3082\u591a\u304f\u8cb7\u3063\u3066\u3044\u305f\u4eba\u305f\u3061\u3067\u3059\u3002\u5358\u7d14\u306b\u6bd4\u3079\u308b\u3068\u3001<strong>\u30af\u30fc\u30dd\u30f3\u306e\u52b9\u679c<\/strong>\u3068<strong>\u300c\u3082\u3068\u3082\u3068\u512a\u826f\u9867\u5ba2\u3060\u3063\u305f\u3053\u3068\u300d\u306e\u52b9\u679c<\/strong>\u304c\u6df7\u3056\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u3092\u9632\u3050\u4e00\u756a\u78ba\u5b9f\u306a\u65b9\u6cd5\u306f\u3001\u5bfe\u8c61\u8005\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u300c\u3042\u308a\u300d\u300c\u306a\u3057\u300d\u306b\u632f\u308a\u5206\u3051\u308b<strong>\u30e9\u30f3\u30c0\u30e0\u5316\u6bd4\u8f03\u8a66\u9a13\uff08RCT\uff09<\/strong>\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u502b\u7406\u7684\u306b\u96e3\u3057\u3044\u3001\u9867\u5ba2\u3078\u306e\u8aac\u660e\u306b\u56f0\u308b\u3001\u3059\u3067\u306b\u65bd\u7b56\u304c\u59cb\u307e\u3063\u3066\u3044\u308b\u3001\u3068\u3044\u3063\u305f\u7406\u7531\u3067\u3001RCT\u3092\u7d44\u3081\u306a\u3044\u3053\u3068\u3082\u591a\u304f\u3042\u308a\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u624b\u5143\u306e\u89b3\u6e2c\u30c7\u30fc\u30bf\u304b\u3089\u300cRCT\u3092\u884c\u3063\u305f\u304b\u306e\u3088\u3046\u306a\u6bd4\u8f03\u300d\u3092\u3064\u304f\u308b\u624b\u6cd5\u3068\u3057\u3066\u3001<strong>\u50be\u5411\u30b9\u30b3\u30a2\u30de\u30c3\u30c1\u30f3\u30b0\uff08PSM\uff09\u3068\u9006\u78ba\u7387\u91cd\u307f\u4ed8\u3051\u6cd5\uff08IPW\uff09<\/strong>\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u50be\u5411\u30b9\u30b3\u30a2\u3068\u306f<\/strong><\/h2>\n\n\n\n<p><strong>\u50be\u5411\u30b9\u30b3\u30a2\uff08Propensity Score\uff09<\/strong>\u3068\u306f\u3001\u300c\u3042\u308b\u4eba\u306e\u7279\u5fb4\u304c\u4e0e\u3048\u3089\u308c\u305f\u3068\u304d\u306b\u3001\u305d\u306e\u4eba\u304c\u65bd\u7b56\u3092\u53d7\u3051\u308b\u78ba\u7387\u300d\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><mi>e<\/mi><mo form=\"prefix\" stretchy=\"false\">(<\/mo><mi>x<\/mi><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mo>=<\/mo><mi>P<\/mi><mo form=\"prefix\" stretchy=\"false\">(<\/mo><mi>W<\/mi><mo>=<\/mo><mn>1<\/mn><mo lspace=\"0.22em\" rspace=\"0.22em\" stretchy=\"false\">|<\/mo><mi>X<\/mi><mo>=<\/mo><mi>x<\/mi><mo form=\"postfix\" stretchy=\"false\">)<\/mo><\/mrow><annotation encoding=\"application\/x-tex\">e(x) = P(W = 1 \\mid X = x)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5165\u529b\u3068\u51fa\u529b\uff1a<\/strong>\u00a0\u8cfc\u5165\u983b\u5ea6\u3084\u4f1a\u54e1\u6b74\u306a\u3069\u306e\u7279\u5fb4 $x$ \u304b\u3089\u30010\u301c1\u306e\u78ba\u7387\u3092\u51fa\u3057\u307e\u3059\uff080.8\u306a\u3089\u3001\u30af\u30fc\u30dd\u30f3\u3092\u53d7\u3051\u53d6\u308a\u3084\u3059\u3044\u4eba\uff09<\/li>\n\n\n\n<li><strong>\u6c42\u3081\u65b9\uff1a<\/strong>\u00a0\u65bd\u7b56\u3092\u53d7\u3051\u305f\u304b\uff08$W$\uff09\u3092\u76ee\u7684\u5909\u6570\u306b\u3057\u305f\u3001\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306a\u3069\u3067\u63a8\u5b9a\u3057\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<p>\u50be\u5411\u30b9\u30b3\u30a2\u304c\u540c\u3058\u306a\u3089\u3001\u65bd\u7b56\u306e\u6709\u7121\u306b\u3088\u3089\u305a\u89b3\u6e2c\u3055\u308c\u305f\u7279\u5fb4\u306e\u5206\u5e03\u304c\u305d\u308d\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u8cfc\u5165\u983b\u5ea6\u3084\u4f1a\u54e1\u6b74\u306a\u3069\u306e\u7279\u5fb4\u3092\u3001\u50be\u5411\u30b9\u30b3\u30a2\u3068\u3044\u30461\u3064\u306e\u6570\u5b57\u306b\u307e\u3068\u3081\u3066\u6bd4\u8f03\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u6ce8\u610f\u70b9\uff1a\u50be\u5411\u30b9\u30b3\u30a2\u306f\u300c\u52b9\u679c\u306e\u5927\u304d\u3055\u300d\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/strong>\u3002\u50be\u5411\u30b9\u30b3\u30a2\u304c\u9ad8\u3044\u4eba\u306f\u300c\u30af\u30fc\u30dd\u30f3\u3092\u53d7\u3051\u53d6\u308a\u3084\u3059\u3044\u4eba\u300d\u3067\u3042\u3063\u3066\u3001\u300c\u30af\u30fc\u30dd\u30f3\u306e\u52b9\u679c\u304c\u5927\u304d\u3044\u4eba\u300d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u50be\u5411\u30b9\u30b3\u30a2\u30de\u30c3\u30c1\u30f3\u30b0\uff08PSM\uff09<\/strong><\/h2>\n\n\n\n<p><strong>PSM<\/strong>\u306f\u3001\u300c<strong>\u50be\u5411\u30b9\u30b3\u30a2\u304c\u8fd1\u3044\u4eba\u540c\u58eb\u3092\u30da\u30a2\u306b\u3057\u3066\u3001\u7d50\u679c\u306e\u5dee\u3092\u6bd4\u3079\u308b<\/strong>\u300d\u624b\u6cd5\u3067\u3059\u3002\u4ecb\u5165\u7fa4\uff08\u30af\u30fc\u30dd\u30f3\u3042\u308a\uff09\u305d\u308c\u305e\u308c\u306b\u3001\u50be\u5411\u30b9\u30b3\u30a2\u304c\u8fd1\u3044\u5bfe\u7167\u7fa4\uff08\u306a\u3057\uff09\u306e\u4eba\u3092\u30da\u30a2\u306b\u3057\u3066\u3001\u30da\u30a2\u3054\u3068\u306e\u5dee\u3092\u5e73\u5747\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-text-align-center\">$\\hat{\\tau}_{\\mathrm{ATT}} = \\frac{1}{N_1}\\sum_{i: W_i=1}\\left(Y_i &#8211; Y_{j(i)}\\right)$<\/p>\n\n\n\n<p>$N_1$ \u306f\u4ecb\u5165\u7fa4\u306e\u4eba\u6570\u3001$j(i)$ \u306f\u500b\u4f53 $i$ \u306e\u30da\u30a2\u306b\u306a\u3063\u305f\u5bfe\u7167\u7fa4\u306e\u500b\u4f53\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6570\u5024\u4f8b\u3067\u7406\u89e3\u3059\u308b<\/strong><\/h3>\n\n\n\n<p>\u67b6\u7a7a\u306e9\u4eba\u3092\u4f7f\u3044\u307e\u3059\u3002\u50be\u5411\u30b9\u30b3\u30a2\u304c\u8fd1\u3044\u9806\u306b\u30da\u30a2\u3092\u4f5c\u308a\u3001\u540c\u3058\u5bfe\u7167\u7fa4\u306e\u4eba\u306f1\u56de\u3057\u304b\u4f7f\u3044\u307e\u305b\u3093\u3002\u5358\u4f4d\u306f\u5343\u5186\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9867\u5ba2<\/th><th>\u30af\u30fc\u30dd\u30f3<\/th><th>\u50be\u5411\u30b9\u30b3\u30a2<\/th><th>\u6708\u9593\u8cfc\u5165\u984d\uff08\u5343\u5186\uff09<\/th><th>\u30da\u30a2<\/th><\/tr><\/thead><tbody><tr><td>A<\/td><td>\u3042\u308a<\/td><td>0.80<\/td><td>12<\/td><td>E<\/td><\/tr><tr><td>B<\/td><td>\u3042\u308a<\/td><td>0.70<\/td><td>10<\/td><td>F<\/td><\/tr><tr><td>C<\/td><td>\u3042\u308a<\/td><td>0.40<\/td><td>6<\/td><td>G<\/td><\/tr><tr><td>D<\/td><td>\u3042\u308a<\/td><td>0.30<\/td><td>4<\/td><td>H<\/td><\/tr><tr><td>E<\/td><td>\u306a\u3057<\/td><td>0.78<\/td><td>10<\/td><td>A<\/td><\/tr><tr><td>F<\/td><td>\u306a\u3057<\/td><td>0.68<\/td><td>9<\/td><td>B<\/td><\/tr><tr><td>G<\/td><td>\u306a\u3057<\/td><td>0.42<\/td><td>5<\/td><td>C<\/td><\/tr><tr><td>H<\/td><td>\u306a\u3057<\/td><td>0.28<\/td><td>2<\/td><td>D<\/td><\/tr><tr><td>I<\/td><td>\u306a\u3057<\/td><td>0.10<\/td><td>1<\/td><td>\uff08\u4f7f\u308f\u308c\u306a\u3044\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"397\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-14-1024x397.png\" alt=\"\" class=\"wp-image-10101\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-14-1024x397.png 1024w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-14-300x116.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-14-768x298.png 768w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-14.png 1464w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center\">\u56f31: \u4e0a\u306e\u8868\u306e9\u4eba\u3092\u3001\u50be\u5411\u30b9\u30b3\u30a2\u306e\u6570\u76f4\u7dda\u306b\u4e26\u3079\u305f\u56f3\u3002\u7dda\u3067\u7d50\u3070\u308c\u305f\u7d44\uff08A\u2013E\u3001B\u2013F\u3001C\u2013G\u3001D\u2013H\uff09\u304c\u30da\u30a2\u3002\u50be\u5411\u30b9\u30b3\u30a2\u304c0.10\u3068\u4f4e\u3044 I \u306b\u306f\u3001\u8fd1\u3044\u4ecb\u5165\u7fa4\u306e\u4eba\u304c\u3044\u306a\u3044\u306e\u3067\u3001\u4f7f\u308f\u308c\u306a\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u2460 \u5358\u7d14\u306b\u6bd4\u3079\u308b\u3068\uff1a<\/strong> \u3042\u308a $\\frac{12+10+6+4}{4}=8.0$\u3001\u306a\u3057 $\\frac{10+9+5+2+1}{5}=5.4$ \u2192 \u5dee\u306f $8.0-5.4=2.6$<\/li>\n\n\n\n<li><strong>\u2461 PSM\u3067\u6bd4\u3079\u308b\u3068\uff1a<\/strong> \u30da\u30a2\u3054\u3068\u306e\u5dee\u306f $2,\\ 1,\\ 1,\\ 2$ \u2192 \u5e73\u5747 $\\frac{2+1+1+2}{4}=1.5$<\/li>\n<\/ul>\n\n\n\n<p>\u5358\u7d14\u306a\u6bd4\u8f03\u3067\u306f2,600\u5186\u5897\u3048\u305f\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u304c\u3001PSM\u3067\u306f1,500\u5186\u3067\u3059\u3002\u5dee\u306e1.1\u5343\u5186\u306f\u3001\u300c\u3082\u3068\u3082\u3068\u3088\u304f\u8cb7\u3046\u4eba\u306b\u30af\u30fc\u30dd\u30f3\u304c\u96c6\u4e2d\u3057\u3066\u3044\u305f\u300d\u3053\u3068\u306b\u3088\u308b\u898b\u304b\u3051\u306e\u52b9\u679c\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u6ce8\u610f\u70b9<\/strong>\uff1a\u9867\u5ba2I\u306e\u3088\u3046\u306b\u3001\u8fd1\u3044\u4ecb\u5165\u7fa4\u306e\u4eba\u304c\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u6bd4\u8f03\u304b\u3089\u5916\u308c\u307e\u3059\u3002PSM\u3067\u63a8\u5b9a\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u300c\u30af\u30fc\u30dd\u30f3\u3092\u53d7\u3051\u53d6\u3063\u305f\u4eba\u306b\u3068\u3063\u3066\u306e\u52b9\u679c\uff08ATT\uff09\u300d\u3067\u3059\u3002\u3053\u306e\u4f8b\u306f\u4ed5\u7d44\u307f\u306e\u7406\u89e3\u7528\u3067\u3001\u5b9f\u969b\u306e\u5206\u6790\u3067\u306f\u305a\u3063\u3068\u591a\u304f\u306e\u30c7\u30fc\u30bf\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u9006\u78ba\u7387\u91cd\u307f\u4ed8\u3051\u6cd5\uff08IPW\uff09<\/strong><\/h2>\n\n\n\n<p><strong>IPW<\/strong>\u306f\u3001\u300c<strong>\u5168\u54e1\u306e\u30c7\u30fc\u30bf\u3092\u4f7f\u3046\u304c\u3001\u305d\u306e\u51e6\u7f6e\u3092\u53d7\u3051\u306b\u304f\u304b\u3063\u305f\u4eba\u307b\u3069\u5927\u304d\u306a\u91cd\u307f\u3092\u3064\u3051\u3066\u96c6\u8a08\u3059\u308b<\/strong>\u300d\u624b\u6cd5\u3067\u3059\u3002\u30da\u30a2\u3092\u4f5c\u308b\u4ee3\u308f\u308a\u306b\u3001\u91cd\u307f\u3067\u4eba\u6570\u3092\u305d\u308d\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-text-align-center\">$\\hat{\\tau}_{\\mathrm{IPW}} = \\frac{1}{n}\\sum_{i=1}^{n}\\left[\\frac{W_iY_i}{\\hat{e}(X_i)} &#8211; \\frac{(1-W_i)Y_i}{1-\\hat{e}(X_i)}\\right]$<\/p>\n\n\n\n<p>\u91cd\u307f\u306f\u3001\u300c\u81ea\u5206\u304c\u5b9f\u969b\u306b\u53d7\u3051\u305f\u51e6\u7f6e\u3092\u53d7\u3051\u308b\u78ba\u7387\u300d\u306e\u9006\u6570\u3067\u3059\u3002\u30af\u30fc\u30dd\u30f3\u3092\u53d7\u3051\u53d6\u3063\u305f\u4eba\u306f $\\frac{1}{\\hat{e}(X_i)}$\u3001\u53d7\u3051\u53d6\u3063\u3066\u3044\u306a\u3044\u4eba\u306f $\\frac{1}{1-\\hat{e}(X_i)}$ \u3067\u3059\uff08$\\hat{e}(X_i)$ \u306f\u63a8\u5b9a\u3057\u305f\u50be\u5411\u30b9\u30b3\u30a2\uff09\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6570\u5024\u4f8b\u3067\u7406\u89e3\u3059\u308b<\/strong><\/h3>\n\n\n\n<p>\u624b\u8a08\u7b97\u3057\u3084\u3059\u3044\u3088\u3046\u306b\u3001\u9867\u5ba2\u30922\u3064\u306e\u5c64\u306b\u5206\u3051\u305f\u5358\u7d14\u306a\u4f8b\u3092\u4f7f\u3044\u307e\u3059\uff08\u67b6\u7a7a\u306e\u30c7\u30fc\u30bf\u3001\u5358\u4f4d\u306f\u5343\u5186\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5c64<\/th><th>\u4eba\u6570<\/th><th>\u3042\u308a<\/th><th>\u306a\u3057<\/th><th>\u50be\u5411\u30b9\u30b3\u30a2<\/th><th>\u5e73\u5747\u8cfc\u5165\u984d\uff08\u3042\u308a\uff09<\/th><th>\u5e73\u5747\u8cfc\u5165\u984d\uff08\u306a\u3057\uff09<\/th><\/tr><\/thead><tbody><tr><td>\u4f4e\u983b\u5ea6\u5c64<\/td><td>100<\/td><td>20<\/td><td>80<\/td><td>0.2<\/td><td>3.0<\/td><td>2.0<\/td><\/tr><tr><td>\u9ad8\u983b\u5ea6\u5c64<\/td><td>100<\/td><td>80<\/td><td>20<\/td><td>0.8<\/td><td>9.0<\/td><td>8.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u305d\u308c\u305e\u308c\u306e\u5c64\u306e\u4e2d\u3060\u3051\u3067\u6bd4\u3079\u308b\u3068\u3001\u5dee\u306f\u3069\u3061\u3089\u3082&nbsp;<strong>+1.0<\/strong>&nbsp;\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u2460 \u5358\u7d14\u306b\u6bd4\u3079\u308b\u3068\uff1a<\/strong> \u3042\u308a $\\frac{20\\times3.0+80\\times9.0}{100}=7.8$\u3001\u306a\u3057 $\\frac{80\\times2.0+20\\times8.0}{100}=3.2$ \u2192 \u5dee\u306f $7.8-3.2=+4.6$<\/li>\n\n\n\n<li><strong>\u2461 \u91cd\u307f\u3092\u8a08\u7b97\u3059\u308b\uff1a<\/strong> \u4f4e\u983b\u5ea6\u5c64\u306f\u3001\u3042\u308a $\\frac{1}{0.2}=5$\u3001\u306a\u3057 $\\frac{1}{0.8}=1.25$\u3002\u9ad8\u983b\u5ea6\u5c64\u306f\u3001\u3042\u308a $\\frac{1}{0.8}=1.25$\u3001\u306a\u3057 $\\frac{1}{0.2}=5$\u3002\u4eba\u6570 \u00d7 \u91cd\u307f\u306f\u3001$20\\times5=80\\times1.25=100$ \u3068\u306a\u308a\u30014\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u3059\u3079\u3066\u304c <strong>100\u4eba\u5206<\/strong>\u306b\u306a\u308a\u307e\u3059<\/li>\n\n\n\n<li><strong>\u2462 \u91cd\u307f\u4ed8\u304d\u5e73\u5747\u3067\u6bd4\u3079\u308b\u3068\uff1a<\/strong> \u3042\u308a $\\frac{100\\times3.0+100\\times9.0}{200}=6.0$\u3001\u306a\u3057 $\\frac{100\\times2.0+100\\times8.0}{200}=5.0$ \u2192 \u5dee\u306f $6.0-5.0=+1.0$<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"489\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-15-1024x489.png\" alt=\"\" class=\"wp-image-10102\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-15-1024x489.png 1024w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-15-300x143.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-15-768x367.png 768w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2026\/10\/image-15.png 1450w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center\">\u56f32: \u4e0a\u306e\u8868\u306e\u4f8b\u3092\u56f3\u306b\u3057\u305f\u3082\u306e\u3002\u91cd\u307f\u4ed8\u3051\u524d\u306f\u3001\u4f4e\u983b\u5ea6\u5c64\u3067\u306f\u30af\u30fc\u30dd\u30f3\u3092\u3082\u3089\u3063\u305f\u4eba\u304c\u5c11\u306a\u304f\uff0820\u4eba\uff09\u3001\u9ad8\u983b\u5ea6\u5c64\u3067\u591a\u3044\uff0880\u4eba\uff09\u3002IPW\u3067\u91cd\u307f\u4ed8\u3051\u3059\u308b\u3068\u30014\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u304c\u3059\u3079\u3066100\u4eba\u5206\u306b\u305d\u308d\u3044\u3001\u5c64\u306e\u69cb\u6210\u306e\u9055\u3044\u304c\u6d88\u3048\u308b\u3002<\/p>\n\n\n\n<p>\u91cd\u307f\u3067\u300c\u3069\u306e\u5c64\u306b\u3044\u305f\u304b\u300d\u306b\u3088\u308b\u504f\u308a\u304c\u6d88\u3048\u3001\u5358\u7d14\u6bd4\u8f03\u306e+4.6\u304c\u3001\u5404\u5c64\u306e\u5b9f\u969b\u306e\u52b9\u679c\u3067\u3042\u308b+1.0\u306b\u623b\u308a\u307e\u3059\u3002\u4e0a\u306e\u5f0f\u306b\u4ee3\u5165\u3057\u3066\u3082\u3001$\\frac{1200-1000}{200}=1.0$ \u3068\u540c\u3058\u5024\u306b\u306a\u308a\u307e\u3059\u3002\u306a\u304a\u3001\u3053\u306e\u5f0f\u304c\u63a8\u5b9a\u3059\u308b\u306e\u306f\u3001PSM\u306eATT\u3068\u9055\u3044\u3001\u300c\u5168\u54e1\u306b\u3068\u3063\u3066\u306e\u5e73\u5747\u7684\u306a\u52b9\u679c\uff08ATE\uff09\u300d\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u6ce8\u610f\u70b9<\/strong>\uff1a\u50be\u5411\u30b9\u30b3\u30a2\u304c0.01\u306e\u4eba\u304c1\u4eba\u30af\u30fc\u30dd\u30f3\u3092\u53d7\u3051\u53d6\u308b\u3068\u3001\u91cd\u307f\u306f100\u306b\u306a\u308a\u3001\u305d\u306e1\u4eba\u304c100\u4eba\u5206\u3068\u3057\u3066\u6570\u3048\u3089\u308c\u307e\u3059\u3002<strong>\u63a8\u5b9a\u304c\u4e0d\u5b89\u5b9a\u306b\u306a\u308b\u306e\u3067\u3001\u91cd\u307f\u306b\u4e0a\u9650\u3092\u8a2d\u3051\u308b\uff08\u30c8\u30ea\u30df\u30f3\u30b0\uff09\u306a\u3069\u3067\u5bfe\u51e6\u3057\u307e\u3059\u3002\u307e\u305f\u3001IPW\u3068\u7d50\u679c\u3092\u4e88\u6e2c\u3059\u308b\u56de\u5e30\u30e2\u30c7\u30eb\u3092\u7d44\u307f\u5408\u308f\u305b\u305fAIPW<\/strong>\u306f\u3001\u3069\u3061\u3089\u304b\u4e00\u65b9\u306e\u30e2\u30c7\u30eb\u304c\u6b63\u3057\u3051\u308c\u3070\u3088\u3044\uff08\u4e8c\u91cd\u306b\u30ed\u30d0\u30b9\u30c8\uff09\u3068\u3044\u3046\u6027\u8cea\u3092\u6301\u3061\u3001\u5b9f\u52d9\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u7d50\u679c\u306e\u78ba\u8a8d\u3068\u5b9f\u52d9\u306e\u30dd\u30a4\u30f3\u30c8<\/strong><\/h2>\n\n\n\n<p>\u8abf\u6574\u306e\u3042\u3068\u306f\u3001<strong>\u672c\u5f53\u306b\u7279\u5fb4\u304c\u305d\u308d\u3063\u305f\u304b<\/strong>\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u4ee3\u8868\u7684\u306a\u6307\u6a19\u304c**\u6a19\u6e96\u5316\u5e73\u5747\u5dee\uff08SMD\uff09**\u3067\u3001\u5171\u5909\u91cf\u306e\u5e73\u5747\u304c2\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u3067\u3069\u308c\u3060\u3051\u96e2\u308c\u3066\u3044\u308b\u304b\u3092\u3001\u3070\u3089\u3064\u304d\u3092\u57fa\u6e96\u306b\u3057\u305f\u5358\u4f4d\u3067\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-text-align-center\">$\\mathrm{SMD} = \\frac{\\bar{x}_{\\text{\u4ecb\u5165}} &#8211; \\bar{x}_{\\text{\u5bfe\u7167}}}{\\sqrt{\\frac{s_{\\text{\u4ecb\u5165}}^2 + s_{\\text{\u5bfe\u7167}}^2}{2}}}$<\/p>\n\n\n\n<p>0\u306b\u8fd1\u3044\u307b\u3069\u3001\u7279\u5fb4\u304c\u305d\u308d\u3063\u3066\u3044\u307e\u3059\u3002\u8abf\u6574\u306e\u524d\u5f8c\u3067\u6bd4\u3079\u3066\u3001\u5f8c\u306e\u307b\u3046\u304c\u5c0f\u3055\u304f\u306a\u3063\u3066\u3044\u308c\u3070\u3001\u3046\u307e\u304f\u3044\u3063\u3066\u3044\u307e\u3059\u3002\u50be\u5411\u30b9\u30b3\u30a2\u306e\u30e2\u30c7\u30eb\u304c\u9069\u5207\u304b\u3069\u3046\u304b\u306f\u3001\u3053\u306e\u30d0\u30e9\u30f3\u30b9\u306e\u78ba\u8a8d\u3067\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u78ba\u8a8d\u3059\u308b\u3053\u3068<\/th><th>\u76ee\u5b89\u30fb\u30dd\u30a4\u30f3\u30c8<\/th><\/tr><\/thead><tbody><tr><td>\u5171\u901a\u30b5\u30dd\u30fc\u30c8<\/td><td>\u50be\u5411\u30b9\u30b3\u30a2\u306e\u5206\u5e03\u304c\u3001\u4ecb\u5165\u7fa4\u3068\u5bfe\u7167\u7fa4\u3067\u91cd\u306a\u3063\u3066\u3044\u308b\u304b\u3002\u91cd\u306a\u3089\u306a\u3044\u7bc4\u56f2\u306f\u6bd4\u8f03\u3067\u304d\u306a\u3044<\/td><\/tr><tr><td>\u30d0\u30e9\u30f3\u30b9\uff08SMD\uff09<\/td><td>0.1\u672a\u6e80\u304c\u76ee\u5b89\uff080.25\u3092\u57fa\u6e96\u306b\u3059\u308b\u5834\u5408\u3082\u3042\u308b\uff09\u3002\u30b5\u30f3\u30d7\u30eb\u304c\u5c11\u306a\u3044\u3068\u3001\u5076\u7136\u306e\u504f\u308a\u3067\u5927\u304d\u304f\u51fa\u308b\u3053\u3068\u304c\u3042\u308b<\/td><\/tr><tr><td>\u30ad\u30e3\u30ea\u30d1\u30fc\uff08PSM\uff09<\/td><td>\u50be\u5411\u30b9\u30b3\u30a2\u306e\u30ed\u30b8\u30c3\u30c8\u306e\u6a19\u6e96\u504f\u5dee\u306e0.2\u500d\u304c\u76ee\u5b89\uff08\u5e73\u5747\u306e\u5dee\u3092\u63a8\u5b9a\u3059\u308b\u5834\u5408\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u203b \u76ee\u5b89\u306f\u5206\u91ce\u3084\u76ee\u7684\u306b\u3088\u3063\u3066\u8abf\u6574\u304c\u5fc5\u8981\u3067\u3059\u3002\u50be\u5411\u30b9\u30b3\u30a2\u3092\u4f7f\u3046\u624b\u6cd5\u306b\u306f\u3001PSM\u30fbIPW\u306e\u307b\u304b\u306b\u3001\u5c64\u5225\u5316\u3068\u5171\u5909\u91cf\u8abf\u6574\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u3088\u304f\u3042\u308b\u8aa4\u89e3\u3068\u6ce8\u610f\u70b9<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u89b3\u6e2c\u3057\u3066\u3044\u306a\u3044\u8981\u56e0\u306f\u8abf\u6574\u3067\u304d\u307e\u305b\u3093\u3002<\/strong>\u00a0\u50be\u5411\u30b9\u30b3\u30a2\u3067\u8abf\u6574\u3067\u304d\u308b\u306e\u306f\u3001\u30c7\u30fc\u30bf\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u5171\u5909\u91cf\u3060\u3051\u3067\u3059\u3002\u300c\u55b6\u696d\u62c5\u5f53\u8005\u306e\u52d8\u3067\u914d\u3063\u305f\u300d\u306e\u306b\u3001\u305d\u306e\u4e2d\u8eab\u304c\u30c7\u30fc\u30bf\u306b\u306a\u3044\u5834\u5408\u3001\u504f\u308a\u306f\u6b8b\u308a\u307e\u3059\u3002RCT\u306e\u3088\u3046\u306a\u4fdd\u8a3c\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n\n\n\n<li><strong>\u65bd\u7b56\u306e\u5f8c\u3067\u6e2c\u5b9a\u3055\u308c\u305f\u5909\u6570\u306f\u5165\u308c\u307e\u305b\u3093\u3002<\/strong>\u00a0\u30af\u30fc\u30dd\u30f3\u914d\u5e03\u5f8c\u306e\u95b2\u89a7\u6570\u306e\u3088\u3046\u306b\u3001\u65bd\u7b56\u306e\u7d50\u679c\u3068\u3057\u3066\u5909\u308f\u308b\u5909\u6570\u3092\u5165\u308c\u308b\u3068\u3001\u52b9\u679c\u306e\u4e00\u90e8\u3092\u8abf\u6574\u3067\u6d88\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u307e\u3068\u3081<\/strong><\/h2>\n\n\n\n<p>PSM\u306f\u76f4\u611f\u7684\u3067\u8aac\u660e\u3057\u3084\u3059\u3044\u4e00\u65b9\u3001\u30da\u30a2\u306b\u306a\u3089\u306a\u304b\u3063\u305f\u4eba\u306e\u30c7\u30fc\u30bf\u306f\u4f7f\u308f\u308c\u307e\u305b\u3093\u3002IPW\u306f\u5168\u54e1\u306e\u30c7\u30fc\u30bf\u3092\u4f7f\u3048\u307e\u3059\u304c\u3001\u6975\u7aef\u306a\u50be\u5411\u30b9\u30b3\u30a2\u306b\u5f31\u3044\u3067\u3059\u3002\u4e21\u65b9\u3067\u63a8\u5b9a\u3057\u3066\u3001\u7d50\u679c\u304c\u8fd1\u3044\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n\n\n\n<ul 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