{"id":33134,"date":"2025-05-28T23:47:31","date_gmt":"2025-05-28T14:47:31","guid":{"rendered":"https:\/\/uxdaystokyo.com\/articles\/?post_type=glossary&#038;p=33134"},"modified":"2025-07-17T13:11:42","modified_gmt":"2025-07-17T04:11:42","slug":"number-bias","status":"publish","type":"glossary","link":"https:\/\/uxdaystokyo.com\/articles\/glossary\/number-bias\/","title":{"rendered":"\u6570\u5024\u504f\u91cd\u30d0\u30a4\u30a2\u30b9"},"content":{"rendered":"<div class=\"p-rich_text_section\">\u76f4\u611f\u7684\u30fb\u5b9a\u6027\u7684\u306a\u60c5\u5831\u3084\u80cc\u666f\u6587\u8108\u3088\u308a\u3082\u3001\u6570\u5024\u3084\u7d71\u8a08\u30c7\u30fc\u30bf\u304c\u300c\u5ba2\u89b3\u7684\u300d\u300c\u6b63\u78ba\u300d\u3067\u3042\u308b\u3068\u8aa4\u8a8d\u3057\u3084\u3059\u304f\u306a\u308b\u8a8d\u77e5\u30d0\u30a4\u30a2\u30b9\u3067\u3042\u308b\u3002<br \/>\n\u6570\u5024\u3067\u8868\u305b\u308b\u76ee\u6a19\u3084\u6307\u6a19\u3092\u300c\u6570\u5024\uff1d\u771f\u5b9f\u300d\u3068\u904e\u5270\u306b\u4fe1\u983c\u3057\u3001\u305d\u308c\u306b\u983c\u308a\u3059\u304e\u308b\u30d0\u30a4\u30a2\u30b9\u304b\u3089<b data-stringify-type=\"bold\">\u5224\u65ad\u305d\u306e\u3082\u306e\u304c\u504f\u308b\u3002<\/b>\u5b9a\u91cf\u5316\u30d0\u30a4\u30a2\u30b9\u3068\u3082\u547c\u3070\u308c\u308b\u3002<b data-stringify-type=\"bold\"><br \/>\n<\/b><\/div>\n<div><\/div>\n<div>\n<p data-start=\"51\" data-end=\"169\">\u610f\u601d\u6c7a\u5b9a\u306b\u304a\u3044\u3066<strong data-start=\"74\" data-end=\"106\">\u6570\u5024\u5316\u3055\u308c\u305f\u60c5\u5831\u3084\u5b9a\u91cf\u7684\u30c7\u30fc\u30bf\u3092\u904e\u5ea6\u306b\u4fe1\u983c\u30fb\u91cd\u8996\u3059\u308b\u50be\u5411<\/strong>\u306f\u3001\u6570\u5024\u304c\u5ba2\u89b3\u7684\u3067\u4fe1\u983c\u3067\u304d\u308b\u3068\u898b\u306a\u3055\u308c\u308b\u3053\u3068\u304b\u3089\u751f\u3058\u308b\u304c\u3001\u5b9f\u969b\u306b\u306f\u6570\u5024\u306e\u80cc\u5f8c\u306b\u3042\u308b\u524d\u63d0\u3084\u6e2c\u5b9a\u65b9\u6cd5\u306e\u9650\u754c\u3092\u898b\u843d\u3068\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n<p data-start=\"171\" data-end=\"248\">\u3053\u306e\u30d0\u30a4\u30a2\u30b9\u306f\u3001\u7279\u306b\u30d3\u30b8\u30cd\u30b9\u3001\u653f\u7b56\u3001\u79d1\u5b66\u3001UX\u30ea\u30b5\u30fc\u30c1\u306a\u3069\u306e\u5206\u91ce\u306b\u304a\u3044\u3066\u3001\u6570\u5024\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u91cd\u8981\u306a\u30a4\u30f3\u30b5\u30a4\u30c8\u306e\u898b\u843d\u3068\u3057\u3084\u3001\u5224\u65ad\u306e\u5358\u7d14\u5316\u3092\u62db\u304f\u30ea\u30b9\u30af\u304c\u3042\u308b\u3002<\/p>\n<\/div>\n<div class=\"p-rich_text_section\">\u4f8b\uff1a<\/div>\n<ul class=\"p-rich_text_list p-rich_text_list__bullet p-rich_text_list--nested\" data-stringify-type=\"unordered-list\" data-list-tree=\"true\" data-indent=\"0\" data-border=\"0\">\n<li data-stringify-indent=\"0\" data-stringify-border=\"0\">\u30c6\u30b9\u30c8\u306e\u70b9\u6570\u3060\u3051\u3067\u5b50\u3069\u3082\u306e\u80fd\u529b\u3092\u8a55\u4fa1\u3059\u308b\u3002<\/li>\n<li data-stringify-indent=\"0\" data-stringify-border=\"0\">\u30a2\u30af\u30bb\u30b9\u6570\u3060\u3051\u3067\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u4fa1\u5024\u3092\u5224\u65ad\u3059\u308b\u3002<\/li>\n<\/ul>\n<h3 data-start=\"255\" data-end=\"262\">\u63d0\u5531\u8005<\/h3>\n<div style=\"width: 438px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/encrypted-tbn2.gstatic.com\/images?q=tbn:ANd9GcTwKZCUhz2OR_hYGXuV7IRTy3vi255hDC9sQeweOEGNlijo4tOHNHShE7lZUvfSWs7I1wXLq1cuwAomyj4mNYlx8g\" alt=\"\" width=\"428\" height=\"428\" \/><p class=\"wp-caption-text\">\u30c0\u30cb\u30a8\u30eb\u30fb\u30ab\u30fc\u30cd\u30de\u30f3\uff1a\uff08\u5f15\u7528\uff09<a href=\"https:\/\/www.theguardian.com\/science\/2024\/mar\/28\/daniel-kahneman-death-age-90-psychologist-nobel-prize-winner-bio\">https:\/\/www.theguardian.com\/science\/2024\/mar\/28\/daniel-kahneman-death-age-90-psychologist-nobel-prize-winner-bio<\/a><\/p><\/div>\n<p data-start=\"132\" data-end=\"287\"><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u300c\u6570\u5024\u504f\u91cd\u30d0\u30a4\u30a2\u30b9\u300d\u3068\u3044\u3046\u7528\u8a9e\u81ea\u4f53\u306b\u7279\u5b9a\u306e\u63d0\u5531\u8005\u306f\u5b58\u5728\u3057\u306a\u3044\u304c\u3001\u95a2\u9023\u3059\u308b\u8a8d\u77e5\u30d0\u30a4\u30a2\u30b9\u306e\u7814\u7a76\u306f\u3001\u5fc3\u7406\u5b66\u8005\u306e\u30a2\u30e2\u30b9\u30fb\u30c8\u30d9\u30eb\u30b9\u30ad\u30fc\uff08Amos Tversky\uff09\u3068\u30c0\u30cb\u30a8\u30eb\u30fb\u30ab\u30fc\u30cd\u30de\u30f3\uff08Daniel Kahneman\uff09\u306b\u3088\u3063\u30661970\u5e74\u4ee3\u306b\u59cb\u3081\u3089\u308c\u305f\u3002<\/span><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u5f7c\u3089\u306f\u3001\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u30b9\uff08\u76f4\u611f\u7684\u5224\u65ad\uff09\u3084\u30d0\u30a4\u30a2\u30b9\u304c\u4eba\u9593\u306e\u610f\u601d\u6c7a\u5b9a\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u4f53\u7cfb\u7684\u306b\u7814\u7a76\u3057\u3001\u8a8d\u77e5\u30d0\u30a4\u30a2\u30b9\u306e\u6982\u5ff5\u3092\u78ba\u7acb\u3057\u305f\u3002<\/span><\/p>\n<p data-start=\"264\" data-end=\"470\">\u6570\u5024\u504f\u91cd\u30d0\u30a4\u30a2\u30b9\u306f\u3001\u7279\u5b9a\u306e\u4e00\u4eba\u306b\u3088\u3063\u3066\u547d\u540d\u30fb\u4f53\u7cfb\u5316\u3055\u308c\u305f\u3082\u306e\u3067\u306f\u306a\u304f\u3001<strong data-start=\"299\" data-end=\"313\">\u30c0\u30cb\u30a8\u30eb\u30fb\u30ab\u30fc\u30cd\u30de\u30f3<\/strong>\uff08Daniel Kahneman\uff09\u3084<strong data-start=\"331\" data-end=\"346\">\u30a8\u30a4\u30e2\u30b9\u30fb\u30c8\u30d9\u30eb\u30b9\u30ad\u30fc<\/strong>\uff08Amos Tversky\uff09\u3089\u306b\u3088\u308b\u300c\u8a8d\u77e5\u30d0\u30a4\u30a2\u30b9\u300d\u300c\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30af\u30b9\u300d\u306e\u7814\u7a76\u306b\u6839\u3056\u3057\u3066\u3044\u308b\u3002\u7279\u306b\u300e\u30d5\u30a1\u30b9\u30c8\uff06\u30b9\u30ed\u30fc\uff08Thinking, Fast and Slow\uff09\u300f\u3067\u7d39\u4ecb\u3055\u308c\u305f\u300c\u5229\u7528\u53ef\u80fd\u6027\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u300d\u3084\u300c\u4ee3\u66ff\u6307\u6a19\u306e\u8aa4\u7528\u300d\u304c\u80cc\u666f\u306b\u3042\u308b\u3002<\/p>\n<h2 data-start=\"294\" data-end=\"314\">\u30c7\u30b6\u30a4\u30f3\u306b\u304a\u3051\u308b\u6d3b\u7528\u65b9\u6cd5\u3068\u5177\u4f53\u4f8b<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-33187\" src=\"https:\/\/uxdaystokyo.com\/articles\/wp-content\/uploads\/2025\/05\/3-1024x1024.png\" alt=\"\" width=\"382\" height=\"382\" srcset=\"https:\/\/uxdaystokyo.com\/articles\/wp-content\/uploads\/2025\/05\/3-1024x1024.png 1024w, https:\/\/uxdaystokyo.com\/articles\/wp-content\/uploads\/2025\/05\/3-150x150.png 150w, https:\/\/uxdaystokyo.com\/articles\/wp-content\/uploads\/2025\/05\/3-300x300.png 300w, https:\/\/uxdaystokyo.com\/articles\/wp-content\/uploads\/2025\/05\/3-768x768.png 768w, https:\/\/uxdaystokyo.com\/articles\/wp-content\/uploads\/2025\/05\/3.png 1080w, https:\/\/uxdaystokyo.com\/articles\/wp-content\/uploads\/2025\/05\/3-640x640.png 640w\" sizes=\"auto, (max-width: 382px) 100vw, 382px\" \/><\/p>\n<p data-start=\"316\" data-end=\"412\"><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u30c7\u30b6\u30a4\u30f3\u306e\u5206\u91ce\u3067\u306f\u3001\u6570\u5024\u504f\u91cd\u30d0\u30a4\u30a2\u30b9\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/span>\u4ee5\u4e0b\u306b\u5177\u4f53\u7684\u306a\u6d3b\u7528\u65b9\u6cd5\u3068\u4e8b\u4f8b\u3092\u793a\u3059\u3002<\/p>\n<h3 data-start=\"414\" data-end=\"442\">1. \u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff08UI\uff09\u30c7\u30b6\u30a4\u30f3<\/h3>\n<p data-start=\"444\" data-end=\"532\"><strong data-start=\"444\" data-end=\"452\">\u6d3b\u7528\u65b9\u6cd5<\/strong>: <span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u30e6\u30fc\u30b6\u30fc\u304c\u6570\u5024\u60c5\u5831\u306b\u904e\u5ea6\u306b\u4f9d\u5b58\u3057\u306a\u3044\u3088\u3046\u3001\u5b9a\u6027\u7684\u306a\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3084\u30d3\u30b8\u30e5\u30a2\u30eb\u8981\u7d20\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3002<\/span><\/p>\n<p data-start=\"534\" data-end=\"621\"><strong data-start=\"534\" data-end=\"541\">\u5177\u4f53\u4f8b<\/strong>: <span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u5065\u5eb7\u7ba1\u7406\u30a2\u30d7\u30ea\u306b\u304a\u3044\u3066\u3001\u5358\u306a\u308b\u6570\u5024\uff08\u4f8b\uff1a\u6b69\u6570\u3001\u6d88\u8cbb\u30ab\u30ed\u30ea\u30fc\uff09\u3060\u3051\u3067\u306a\u304f\u3001\u9054\u6210\u611f\u3092\u793a\u3059\u30d0\u30c3\u30b8\u3084\u52b1\u307e\u3057\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30e2\u30c1\u30d9\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3059\u308b\u3002<\/span><\/p>\n<h3 data-start=\"623\" data-end=\"643\">2. \u30d7\u30ed\u30c0\u30af\u30c8\u8a55\u4fa1\u3068\u610f\u601d\u6c7a\u5b9a<\/h3>\n<p data-start=\"645\" data-end=\"733\"><strong data-start=\"645\" data-end=\"653\">\u6d3b\u7528\u65b9\u6cd5<\/strong>: <span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u88fd\u54c1\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u8a55\u4fa1\u306b\u304a\u3044\u3066\u3001\u6570\u5024\u30c7\u30fc\u30bf\u3060\u3051\u3067\u306a\u304f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u611f\u60f3\u3084\u4f7f\u7528\u72b6\u6cc1\u306a\u3069\u306e\u5b9a\u6027\u7684\u60c5\u5831\u3092\u91cd\u8996\u3059\u308b\u3002<\/span><\/p>\n<p data-start=\"735\" data-end=\"822\"><strong data-start=\"735\" data-end=\"742\">\u5177\u4f53\u4f8b<\/strong>: <span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u65b0\u88fd\u54c1\u306e\u958b\u767a\u6642\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30d3\u30e5\u30fc\u3084\u30d5\u30a3\u30fc\u30eb\u30c9\u30c6\u30b9\u30c8\u3092\u901a\u3058\u3066\u5f97\u3089\u308c\u305f\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u8a2d\u8a08\u306b\u53cd\u6620\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u6570\u5024\u3067\u306f\u6349\u3048\u304d\u308c\u306a\u3044\u30e6\u30fc\u30b6\u30fc\u306e\u30cb\u30fc\u30ba\u3092\u6e80\u305f\u3059\u3002<\/span><\/p>\n<h3 data-start=\"824\" data-end=\"842\">3. \u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3068\u5e83\u544a<\/h3>\n<p data-start=\"844\" data-end=\"932\"><strong data-start=\"844\" data-end=\"852\">\u6d3b\u7528\u65b9\u6cd5<\/strong>: <span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u5e83\u544a\u3084\u30d7\u30ed\u30e2\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3044\u3066\u3001\u6570\u5024\u7684\u306a\u5b9f\u7e3e\u3060\u3051\u3067\u306a\u304f\u3001\u30d6\u30e9\u30f3\u30c9\u306e\u30b9\u30c8\u30fc\u30ea\u30fc\u3084\u4fa1\u5024\u89b3\u3092\u4f1d\u3048\u308b\u3053\u3068\u3067\u3001\u6d88\u8cbb\u8005\u306e\u5171\u611f\u3092\u5f97\u308b\u3002<\/span><\/p>\n<p data-start=\"934\" data-end=\"1021\"><strong data-start=\"934\" data-end=\"941\">\u5177\u4f53\u4f8b<\/strong>: <span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">\u88fd\u54c1\u306e\u8ca9\u58f2\u5b9f\u7e3e\u3092\u793a\u3059\u3060\u3051\u3067\u306a\u304f\u3001\u88fd\u54c1\u958b\u767a\u306e\u80cc\u666f\u3084\u958b\u767a\u8005\u306e\u601d\u3044\u3092\u7d39\u4ecb\u3059\u308b\u3053\u3068\u3067\u3001\u6d88\u8cbb\u8005\u306e\u4fe1\u983c\u3068\u8208\u5473\u3092\u5f15\u304d\u51fa\u3059\u3002<\/span><\/p>\n<h2 data-start=\"1028\" 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