{"id":928,"date":"2026-03-02T20:16:55","date_gmt":"2026-03-02T11:16:55","guid":{"rendered":"http:\/\/waurimal.kr\/?p=928"},"modified":"2026-03-02T20:16:57","modified_gmt":"2026-03-02T11:16:57","slug":"chap32-%ec%8b%9c%ec%9e%a5-%ec%a1%b0%ec%82%ac%ec%99%80-%ec%84%a0%ed%98%b8%eb%8f%84-%ec%9e%90%eb%a3%8cmarket-research-and-preference-data","status":"publish","type":"post","link":"http:\/\/waurimal.kr\/?p=928","title":{"rendered":"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data)"},"content":{"rendered":"\n<p><br>\uc548\ub155\ud558\uc138\uc694!<\/p>\n\n\n\n<p>\uc624\ub298\uc740 <strong>\ub2e4\uce35\ubd84\uc11d(Multilevel Analysis)\uc744 \ud65c\uc6a9\ud55c \uc120\ud638\ub3c4 \ubc0f \uc0c1\ud638\uc791\uc6a9 \ub370\uc774\ud130 \ubd84\uc11d<\/strong>\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \u201c\ud559\uad50 \ud604\uc7a5\uc758 \ub370\uc774\ud130\u201d\ub97c \uc608\uc2dc\ub85c \ub4e4\uc5b4 \uc9c1\uad00\uc801\uc778 \uc124\uba85\uacfc \uc218\ub9ac\uc801 \uc5c4\ubc00\ud568\uc744 \ubaa8\ub450 \uac16\ucd98 \ud615\ud0dc\ub85c \uc7ac\uad6c\uc131\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ubd84\uc11d \ub3c4\uad6c\ub85c\ub294 jamovi\uc758 \uc0ac\uc6a9\ubc95\uc744 \uc124\uba85\ud558\ub418, jamovi\uc758 \uae30\ubc18\uc774 \ub418\ub294 R \ucf54\ub4dc\ub97c \ud568\uaed8 \uc81c\uc2dc\ud558\uc5ec \ubaa8\uc758 \ub370\uc774\ud130 \uc0dd\uc131\ubd80\ud130 \ubd84\uc11d, \uc2dc\uac01\ud654\uae4c\uc9c0 \uc644\ubcbd\ud558\uac8c \uad6c\ud604\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1. \ub2e4\uce35 \ub370\uc774\ud130(Nested Data)\ub780 \ubb34\uc5c7\uc77c\uae4c\uc694? \ud83e\ude86<\/h3>\n\n\n\n<p id=\"p-rc_d5b2fba0c0171b85-65\">\ucd08\ub4f1\ud559\uc0dd \uce5c\uad6c\ub4e4\uc5d0\uac8c \ub7ec\uc2dc\uc544\uc758 \uc804\ud1b5 \uc778\ud615 &#8216;\ub9c8\ud2b8\ub8cc\uc2dc\uce74(\ud070 \uc778\ud615 \uc548\uc5d0 \uc791\uc740 \uc778\ud615\uc774 \uacc4\uc18d \ub4e4\uc5b4\uc788\ub294 \uc7a5\ub09c\uac10)&#8217;\ub97c \ubcf4\uc5ec\uc8fc\uba70 \ub2e4\uce35 \ub370\uc774\ud130\ub97c \uc124\uba85\ud558\uace4 \ud569\ub2c8\ub2e4. \uad50\uc721 \ud604\uc7a5\uc758 \ub370\uc774\ud130\ub294 \ub300\ubd80\ubd84 \uc774 \ub9c8\ud2b8\ub8cc\uc2dc\uce74\ucc98\ub7fc <strong>&#8216;\ub0b4\ud3ec\ub41c(Nested)&#8217; \uad6c\uc870<\/strong>\ub97c \uac00\uc9d1\ub2c8\ub2e4<sup><\/sup>. \uc608\ub97c \ub4e4\uc5b4, \uc5ec\ub7ec \ubc88\uc758 \uc2dc\ud5d8 \uc810\uc218(\ubc18\ubcf5 \uce21\uc815)\ub294 \ud55c \uba85\uc758 &#8216;\ud559\uc0dd&#8217; \uc548\uc5d0 \uc3d9 \ub4e4\uc5b4\uac00 \uc788\uace0 <sup><\/sup>, \uadf8 \ud559\uc0dd\ub4e4\uc740 \ub2e4\uc2dc \ud558\ub098\uc758 &#8216;\ud559\uae09&#8217; \uc548\uc5d0 \ub4e4\uc5b4\uac00 \uc788\uc8e0<sup><\/sup>.<\/p>\n\n\n\n<p id=\"p-rc_d5b2fba0c0171b85-66\">\uc774\ub7ec\ud55c \ub370\uc774\ud130 \uad6c\uc870\uc5d0\uc11c\ub294 \uac19\uc740 \ubc18 \uce5c\uad6c\ub4e4\ub07c\ub9ac, \ud639\uc740 \ud55c \ud559\uc0dd\uc774 \ub0b8 \uc5ec\ub7ec \ub2f5\ubcc0\ub07c\ub9ac \uc11c\ub85c \uc601\ud5a5\uc744 \uc8fc\uace0\ubc1b\uc544 \ub3c5\ub9bd\uc131 \uac00\uc815\uc774 \uae68\uc9c0\uac8c \ub429\ub2c8\ub2e4<sup><\/sup>. \uc774\ub97c \ubb34\uc2dc\ud558\uace0 \uc77c\ubc18\uc801\uc778 \ud68c\uadc0\ubd84\uc11d(OLS)\uc774\ub098 \ubd84\uc0b0\ubd84\uc11d\uc744 \ud558\uba74, 1\uc885 \uc624\ub958(Type I error)\uac00 \ud06c\uac8c \ub098\ud0c0\ub098\uace0 \uc798\ubabb\ub41c \uacb0\uacfc\ub97c \uc5bb\uac8c \ub429\ub2c8\ub2e4<sup><\/sup>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\uc5bc\ub9c8\ub098 \ub0b4\ud3ec\ub418\uc5b4 \uc788\ub294\uc9c0 \uc5b4\ub5bb\uac8c \uc54c\uae4c\uc694? (ICC)<\/h4>\n\n\n\n<p id=\"p-rc_d5b2fba0c0171b85-67\">\uc774\ub54c \ud655\uc778\ud558\ub294 \uac83\uc774 <strong>\uae09\ub0b4\uc0c1\uad00\uacc4\uc218(Intraclass Correlation Coefficient, ICC)<\/strong>\uc785\ub2c8\ub2e4. \uc804\uccb4 \ub370\uc774\ud130\uc758 \ubcc0\ub3d9 \uc911\uc5d0\uc11c &#8216;\uc9d1\ub2e8 \uac04\uc758 \ucc28\uc774&#8217;\uac00 \ucc28\uc9c0\ud558\ub294 \ube44\uc728\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc218\uc2dd\uc73c\ub85c\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\ud604\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p><math data-latex=\"ICC = \\frac{\\delta_{\\alpha}^{2}}{\\delta_{\\alpha}^{2}+\\delta_{\\epsilon}^{2}}\"><semantics><mrow><mi>I<\/mi><mi>C<\/mi><mi>C<\/mi><mo>=<\/mo><mfrac><msubsup><mi>\u03b4<\/mi><mi>\u03b1<\/mi><mn>2<\/mn><\/msubsup><mrow><msubsup><mi>\u03b4<\/mi><mi>\u03b1<\/mi><mn>2<\/mn><\/msubsup><mo>+<\/mo><msubsup><mi>\u03b4<\/mi><mi>\u03f5<\/mi><mn>2<\/mn><\/msubsup><\/mrow><\/mfrac><\/mrow><annotation encoding=\"application\/x-tex\">ICC = \\frac{\\delta_{\\alpha}^{2}}{\\delta_{\\alpha}^{2}+\\delta_{\\epsilon}^{2}}<\/annotation><\/semantics><\/math><\/p>\n\n\n\n<p id=\"p-rc_d5b2fba0c0171b85-68\">\ubcf4\ud1b5 ICC \uac12\uc774 0.05\uc5d0\uc11c 0.2 \uc0ac\uc774\uc774\uac70\ub098, \uc124\uacc4\ud6a8\uacfc(Design effect, deff)\uac00 2 \uc774\uc0c1\uc774\uba74 \ub2e4\uce35\ubd84\uc11d\uc744 \ub3c4\uc785\ud558\uc5ec \uc9d1\ub2e8 \uac04 \ubcc0\ub7c9(\uc218\uc2dd\uc5d0\uc11c \ubd84\uc790\uc5d0 \ud574\ub2f9)\uc744 \ubd84\ub9ac\ud574\uc57c \ud569\ub2c8\ub2e4<sup><\/sup>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\uc0d8\ud50c \uc0ac\uc774\uc988\ub294 \uc5b4\ub290 \uc815\ub3c4\uac00 \uc801\ub2f9\ud560\uae4c\uc694?<\/h4>\n\n\n\n<p id=\"p-rc_d5b2fba0c0171b85-69\">\ub2e4\uce35\ubd84\uc11d\uc740 \uc77c\ubc18 \ubd84\uc11d\ubcf4\ub2e4 \ub354 \ub9ce\uc740 \uc0d8\ud50c\uc744 \ud544\uc694\ub85c \ud569\ub2c8\ub2e4<sup><\/sup>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uae30\ubcf8 \uaddc\uce59 (30\/30 \ubc95\uce59):<\/strong> \ucd5c\uc18c 30\uac1c\uc758 \uc9d1\ub2e8\uc774 \uc788\uc5b4\uc57c \ud558\uace0, \uac01 \uc9d1\ub2e8 \uc548\uc5d0\ub294 \ucd5c\uc18c 30\uac1c\uc758 \uad00\uce21\uce58\uac00 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc218\uc900 \uac04 \uc0c1\ud638\uc791\uc6a9 \ubd84\uc11d \uc2dc (50\/20 \ubc95\uce59):<\/strong> \ub354 \uc5c4\uaca9\ud558\uac8c 50\uac1c \uc9d1\ub2e8, \uac01 \uc9d1\ub2e8\ub2f9 20\uba85 \uc774\uc0c1\uc774 \uad8c\uc7a5\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ubb34\uc120 \ud6a8\uacfc(Random effects) \ubd84\uc11d \uc2dc (100\/10 \ubc95\uce59):<\/strong> 100\uac1c \uc9d1\ub2e8\uacfc \uac01 \uc9d1\ub2e8\ub2f9 10\uba85\uc774 \uad8c\uc7a5\ub418\uae30\ub3c4 \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \uad50\uc721 \uc120\ud638\ub3c4 \ubd84\uc11d\uc5d0\uc11c\uc758 \ub2e4\uce35\ubaa8\ud615 (Multilevel Preference Models) \ud83d\udcca<\/h3>\n\n\n\n<p id=\"p-rc_d5b2fba0c0171b85-73\">\uad50\uc721\ud559\uc5d0\uc11c \uc0c8\ub85c\uc6b4 \uad50\uc7ac\ub098 \ud504\ub85c\uadf8\ub7a8\uc744 \uac1c\ubc1c\ud560 \ub54c, \ud559\uc0dd\ub4e4\uc758 \uc120\ud638\ub3c4\ub97c \uce21\uc815\ud558\ub294 \uac83\uc740 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \ub9c8\ucf00\ud305 \ubd84\uc57c\uc5d0\uc11c \uc0c1\ud488 \uac1c\ubc1c \uc2dc \ub110\ub9ac \uc4f0\uc774\ub294 &#8216;\ucee8\uc870\uc778\ud2b8 \ubd84\uc11d(Conjoint Analysis)&#8217;\uc774\ub098 \uc774\uc0b0\uc120\ud0dd\ubaa8\ud615\uc744 \ub2e4\uce35\ubaa8\ud615\uc73c\ub85c \uc7ac\uad6c\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4<sup><\/sup>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1\uc218\uc900 (Within-level):<\/strong> \uac1c\ubcc4 \ud559\uc0dd \uc548\uc5d0\uc11c \uce21\uc815\ub41c \ubc18\ubcf5 \uce21\uc815\uce58\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud558\ub098\uc758 \uad50\uc721 \ud504\ub85c\uadf8\ub7a8\uc774 \uac00\uc9c4 \uc18d\uc131(\ube44\uc6a9, \uc811\uadfc\uc131, \ubcf5\uc7a1\uc131 \ub4f1)\uc5d0 \ub300\ud55c \uc5ec\ub7ec \ubc88\uc758 \ud3c9\uac00\uac00 \uc5ec\uae30\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>2\uc218\uc900 (Between-level):<\/strong> \ud559\uc0dd \uac1c\uc778\uc758 \ud2b9\uc131\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud559\uc0dd\uc758 \uc131\ubcc4, \uc5f0\ub839, \ud639\uc740 \uc0ac\uc804 \ud559\uc2b5 \ub3d9\uae30 \uc218\uc900 \ub4f1\uc774 \uc120\ud638\ub3c4 \ud3c9\uade0(\uc808\ud3b8)\uc5d0 \uc5b4\ub5a4 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294\uc9c0 \uc124\uba85\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p id=\"p-rc_d5b2fba0c0171b85-76\">Muth\u00e9n\uc758 \ubd84\ud574 \ubc29\uc2dd\uc5d0 \ub530\ub974\uba74, \ud559\uc0dd\uc758 \ud2b9\uc815 \uc751\ub2f5 \uc810\uc218(<math data-latex=\"Y_{ij}\"><semantics><msub><mi>Y<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><annotation encoding=\"application\/x-tex\">Y_{ij}<\/annotation><\/semantics><\/math>)\ub294 \ud559\uc0dd\ub4e4 \uac04\uc758 \ud3c9\uade0\uc801 \ucc28\uc774(<math data-latex=\"Y_{B}\"><semantics><msub><mi>Y<\/mi><mi>B<\/mi><\/msub><annotation encoding=\"application\/x-tex\">Y_{B}<\/annotation><\/semantics><\/math>)\uc640 \uadf8 \ud559\uc0dd \ub0b4\uc5d0\uc11c\uc758 \ubcc0\ub3d9(<math data-latex=\"Y_{W}\"><semantics><msub><mi>Y<\/mi><mi>W<\/mi><\/msub><annotation encoding=\"application\/x-tex\">Y_{W}<\/annotation><\/semantics><\/math>)\uc73c\ub85c \ub098\ub204\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \uad50\uc0ac\uc640 \ud559\uc0dd\uc758 \uc0c1\ud638\uc791\uc6a9 \ubd84\uc11d (LS-T \ubc0f APIM \ubaa8\ud615) \ud83e\udd1d<\/h3>\n\n\n\n<p id=\"p-rc_d5b2fba0c0171b85-77\">\uc694\uc998 \uad50\uc721 \ud604\uc7a5\uc5d0\uc11c\ub294 \uc0c1\ud669\uacfc \ub9e5\ub77d\uc5d0 \ub530\ub978 \uc0c1\ud638\uc791\uc6a9\uc774 \uac15\uc870\ub429\ub2c8\ub2e4<sup><\/sup>. \uc218\uc5c5 \uc2dc\uac04\uc5d0 \ud559\uc0dd\uc758 \uae30\ubd84\uc774\ub098 \ubab0\uc785\ub3c4\ub294 \uacc4\uc18d \ubcc0\ud558\uc8e0.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc7a0\uc7ac\uc0c1\ud0dc-\ud2b9\uc131 \ubaa8\ud615 (LS-T):<\/strong> \ud559\uc0dd\uc758 \ubc18\uc751\uc744 \ube44\uad50\uc801 \uc548\uc815\uc801\uc778 \uac1c\uc778\uc801 \uc131\ud5a5\uc778 &#8216;\ud2b9\uc131(Trait)&#8217;\uacfc \ud2b9\uc815 \uc218\uc5c5 \uc0c1\ud669\uc5d0 \ub530\ub978 \uc77c\uc2dc\uc801 \uae30\ubd84\uc778 &#8216;\uc0c1\ud0dc(State)&#8217;, \uadf8\ub9ac\uace0 \uc624\ucc28\ub85c \ubd84\ub9ac\ud574 \ub0c5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ud2b9\uc815 \uc218\uc5c5 \uae30\ubc95\uc774 \ud559\uc0dd\uc758 \uc77c\uc2dc\uc801 \ubab0\uc785\ub3c4(\uc0c1\ud0dc)\ub97c \uc5bc\ub9c8\ub098 \ub04c\uc5b4\uc62c\ub838\ub294\uc9c0 \uc815\ud655\ud788 \ud30c\uc545\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud589\uc704\uc790-\uc0c1\ub300\ubc29 \uc0c1\ud638\uc758\uc874\uc131 \ubaa8\ud615 (APIM):<\/strong> \uad50\uc0ac\uc640 \ud559\uc0dd\uc744 \ud558\ub098\uc758 &#8216;\uc9dd(Dyad)&#8217;\uc73c\ub85c \ubd05\ub2c8\ub2e4.\n<ul class=\"wp-block-list\">\n<li><strong>\ud589\uc704\uc790 \ud6a8\uacfc (Actor effect):<\/strong> \uad50\uc0ac\uc758 \uc5f4\uc815\uc774 \uad50\uc0ac \uc2a4\uc2a4\ub85c\uc758 \ub9cc\uc871\ub3c4\uc5d0 \uc601\ud5a5\uc744 \uc8fc\ub294 \uac83\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc0c1\ub300\ubc29 \ud6a8\uacfc (Partner effect):<\/strong> \uad50\uc0ac\uc758 \uc5f4\uc815\uc774 \uc9dd\uafcd\uc778 \ud559\uc0dd\uc758 \ubab0\uc785\ub3c4\uc5d0 \uc601\ud5a5\uc744 \uc8fc\ub294 \uac83\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. \uc2e4\uc804! \ubaa8\uc758 \ub370\uc774\ud130 \uae30\ubc18 jamovi \ubc0f R \ubd84\uc11d \ud83d\udcbb<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udcd6 \uc2a4\ud1a0\ub9ac\ubcf4\ub4dc: &#8220;\ubbf8\ub798\ud615 AI \ud29c\ud130\ub9c1 \uc2dc\uc2a4\ud15c, \ud559\uc0dd\ub4e4\uc758 \uc120\ud0dd\uc740?&#8221;<\/h4>\n\n\n\n<p>A \uad50\uc721\uccad\uc5d0\uc11c\ub294 \uc0c8\ub85c\uc6b4 &#8216;AI \uc218\ud559 \ud29c\ud130&#8217;\ub97c \ub3c4\uc785\ud558\ub824 \ud569\ub2c8\ub2e4. 50\uba85\uc758 \ud559\uc0dd\uc5d0\uac8c AI \ud29c\ud130\uc758 3\uac00\uc9c0 \uc18d\uc131(1. \ud53c\ub4dc\ubc31 \uc18d\ub3c4, 2. \uac8c\uc784\ud654 \uc5ec\ubd80, 3. \uc544\ubc14\ud0c0 \uc720\ubb34)\uc744 \uc870\ud569\ud55c 8\uac1c\uc758 \ud504\ub85c\ud544\uc744 \ubcf4\uc5ec\uc8fc\uace0 \uc120\ud638\ub3c4 \uc810\uc218(0~100\uc810)\ub97c \ub9e4\uae30\uac8c \ud588\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \ud559\uc0dd\ub4e4\uc758 \uc218\ud559 \ubd88\uc548 \uc218\uc900(Math Anxiety)\ub3c4 2\uc218\uc900 \ubcc0\uc778\uc73c\ub85c \ud568\uaed8 \uc870\uc0ac\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u2328\ufe0f R \ucf54\ub4dc (\ubaa8\uc758 \ub370\uc774\ud130 \uc0dd\uc131 \ubc0f \ubd84\uc11d)<\/h4>\n\n\n\n<p>R<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \ud328\ud0a4\uc9c0 \ub85c\ub4dc\nlibrary(lme4)\nlibrary(lmerTest)\nlibrary(ggplot2)\n\n# 1. \uc7ac\ud604\uc131\uc744 \uc704\ud55c \uc2dc\ub4dc \uc124\uc815\nset.seed(2026)\n\n# 2. 2\uc218\uc900(\ud559\uc0dd \ub2e8\uc704) \ub370\uc774\ud130 \uc0dd\uc131 (50\uba85)\nn_students &lt;- 50\nstudents &lt;- data.frame(\n  StudentID = factor(1:n_students),\n  MathAnxiety = rnorm(n_students, mean = 50, sd = 10), # \uc218\ud559 \ubd88\uc548\ub3c4\n  StudentRandomEffect = rnorm(n_students, mean = 0, sd = 8) # \ud559\uc0dd\ubcc4 \uc120\ud638\ub3c4 \ud3b8\ucc28(\ub79c\ub364 \ud6a8\uacfc)\n)\n\n# 3. 1\uc218\uc900(\ubc18\ubcf5 \uce21\uc815 \ub2e8\uc704) \ub370\uc774\ud130 \uc0dd\uc131 (\uac01 \ud559\uc0dd\ub2f9 8\uac1c \ud504\ub85c\ud544 \ud3c9\uac00)\nn_profiles &lt;- 8\ntotal_obs &lt;- n_students * n_profiles\n\n# \uc694\uc778\uc124\uacc4 (\ud53c\ub4dc\ubc31 \uc18d\ub3c4, \uac8c\uc784\ud654, \uc544\ubc14\ud0c0)\nprofiles &lt;- expand.grid(\n  FeedbackSpeed = c(\"Fast\", \"Slow\"),\n  Gamification = c(\"Yes\", \"No\"),\n  Avatar = c(\"Yes\", \"No\")\n)\n\n# \ub370\uc774\ud130 \ubcd1\ud569\uc744 \uc704\ud55c \uae30\ucd08 \ud504\ub808\uc784\ndf &lt;- data.frame(\n  StudentID = rep(students$StudentID, each = n_profiles),\n  FeedbackSpeed = rep(profiles$FeedbackSpeed, times = n_students),\n  Gamification = rep(profiles$Gamification, times = n_students),\n  Avatar = rep(profiles$Avatar, times = n_students)\n)\n\n# \ud559\uc0dd \uc815\ubcf4 \ubcd1\ud569\ndf &lt;- merge(df, students, by=\"StudentID\")\n\n# 4. \uc885\uc18d\ubcc0\uc218(\uc120\ud638\ub3c4) \uc0dd\uc131 \n# \uc218\ud559 \ubd88\uc548\ub3c4\uac00 \ub192\uc744\uc218\ub85d \uc120\ud638\ub3c4\uac00 \ub0ae\uc544\uc9c0\uace0, \ud53c\ub4dc\ubc31\uc774 \ube60\ub974\uace0 \uac8c\uc784\ud654 \uc694\uc18c\uac00 \uc788\uc744 \ub54c \uc120\ud638\ub3c4\uac00 \uc62c\ub77c\uac10\ndf$Preference &lt;- 60 + \n  ifelse(df$FeedbackSpeed == \"Fast\", 15, -5) + \n  ifelse(df$Gamification == \"Yes\", 10, -5) + \n  ifelse(df$Avatar == \"Yes\", 5, 0) - \n  (df$MathAnxiety * 0.3) + \n  df$StudentRandomEffect + \n  rnorm(total_obs, mean = 0, sd = 5) # 1\uc218\uc900 \uc624\ucc28\n\n# \uc810\uc218\ub97c 0~100 \uc0ac\uc774\ub85c \uc81c\ud55c\ndf$Preference &lt;- pmax(0, pmin(100, round(df$Preference, 1)))\n\n# 5. \ub2e4\uce35\ubd84\uc11d(\uc120\ud615 \ud63c\ud569 \ubaa8\ud615) \uc2e4\ud589\n# \ud559\uc0dd \ub0b4 \ubc18\ubcf5\uce21\uc815\uc774\ubbc0\ub85c StudentID\ub97c \ubb34\uc120 \uc808\ud3b8(Random Intercept)\uc73c\ub85c \uc124\uc815\nmodel &lt;- lmer(Preference ~ FeedbackSpeed + Gamification + Avatar + MathAnxiety + (1 | StudentID), data=df)\n\n# \uacb0\uacfc \uc694\uc57d\nsummary(model)\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udcca jamovi\ub97c \uc774\uc6a9\ud55c \ubd84\uc11d \uac00\uc774\ub4dc<\/h4>\n\n\n\n<p>\uc704\uc5d0\uc11c \uc0dd\uc131\ud55c \ub370\uc774\ud130(CSV \uc800\uc7a5 \ud6c4 \ubd88\ub7ec\uc624\uae30)\ub97c jamovi\uc5d0\uc11c \ubd84\uc11d\ud558\ub294 \ubc29\ubc95\uc740 \uc544\uc8fc \uac04\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\ubaa8\ub4c8 \uc124\uce58 \ubc0f \uc120\ud0dd:<\/strong> \uc6b0\uce21 \uc0c1\ub2e8\uc758 <code>+ Modules<\/code>\ub97c \ud074\ub9ad\ud558\uace0 <strong>GAMLj<\/strong> \ubaa8\ub4c8(\uc120\ud615 \ud63c\ud569 \ubaa8\ud615 \uc9c0\uc6d0)\uc744 \uc124\uce58\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ubd84\uc11d \uba54\ub274 \uc9c4\uc785:<\/strong> <code>Linear Models<\/code> -> <code>Mixed Model<\/code>\uc744 \ud074\ub9ad\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ubcc0\uc218 \ud22c\uc785:<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>Dependent Variable<\/code>: <strong>Preference<\/strong>(\uc120\ud638\ub3c4)<\/li>\n\n\n\n<li><code>Factors<\/code>: <strong>FeedbackSpeed<\/strong>, <strong>Gamification<\/strong>, <strong>Avatar<\/strong> (\uba85\ubaa9\ud615 \ubcc0\uc218)<\/li>\n\n\n\n<li><code>Covariates<\/code>: <strong>MathAnxiety<\/strong> (\uc5f0\uc18d\ud615 \ubcc0\uc218)<\/li>\n\n\n\n<li><code>Cluster Variables<\/code>: <strong>StudentID<\/strong> (\ud559\uc0dd\uc744 \uae30\uc900\uc73c\ub85c \uad70\uc9d1\ud654)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\ub79c\ub364 \ud6a8\uacfc \uc124\uc815 (Random Effects):<\/strong> <code>StudentID<\/code>\ub97c \ud22c\uc785\ud558\uc5ec \ub79c\ub364 \uc808\ud3b8(Random Intercept) \ubaa8\ud615\uc744 \uad6c\uc131\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud574\uc11d:<\/strong> Fixed Effects Estimate \ud45c\uc5d0\uc11c \ud559\uc0dd\uc758 \uc218\ud559 \ubd88\uc548\ub3c4(<code>MathAnxiety<\/code>)\uc640 \uac01 AI \uc18d\uc131\uc774 \uc120\ud638\ub3c4\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc744 \ud30c\uc545\ud569\ub2c8\ub2e4. Random Components \ud45c\uc5d0\uc11c\ub294 \uae09\ub0b4\uc0c1\uad00\uacc4\uc218(ICC)\ub97c \ud655\uc778\ud558\uc5ec \ub2e4\uce35\ubd84\uc11d \ub3c4\uc785\uc758 \ud0c0\ub2f9\uc131\uc744 \uc785\uc99d\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ucc38\uace0\ubb38\ud5cc (APA Style)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hox, J. (2010). <em>Multilevel analysis: Techniques and applications<\/em>. New York, NY: Routledge. <\/li>\n\n\n\n<li>Muth\u00e9n, B., &amp; Satorra, A. (1995). Complex sample data in structural equation modeling. <em>Sociological Methodology, 25<\/em>, 87-99. <\/li>\n\n\n\n<li>Peugh, J. L. (2010). A practical guide to multilevel modeling. <em>Journal of School Psychology, 48<\/em>(1), 85-112. <\/li>\n\n\n\n<li>Snijders, T. A. B., &amp; Kenny, D. A. (1999). The social relations model for family data: A multilevel approach. <em>Personal Relationships, 6<\/em>(4), 471-486. <\/li>\n\n\n\n<li>Steyer, R., &amp; Schmitt, M. J. (1990). Latent state-trait models in attitude research. <em>Quality and Quantity, 24<\/em>, 427-445. <\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc548\ub155\ud558\uc138\uc694! \uc624\ub298\uc740 \ub2e4\uce35\ubd84\uc11d(Multilevel Analysis)\uc744 \ud65c\uc6a9\ud55c \uc120\ud638\ub3c4 \ubc0f \uc0c1\ud638\uc791\uc6a9 \ub370\uc774\ud130 \ubd84\uc11d\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \u201c\ud559\uad50 \ud604\uc7a5\uc758 \ub370\uc774\ud130\u201d\ub97c \uc608\uc2dc\ub85c \ub4e4\uc5b4 \uc9c1\uad00\uc801\uc778 \uc124\uba85\uacfc \uc218\ub9ac\uc801 \uc5c4\ubc00\ud568\uc744 \ubaa8\ub450 \uac16\ucd98 \ud615\ud0dc\ub85c \uc7ac\uad6c\uc131\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. \ubd84\uc11d \ub3c4\uad6c\ub85c\ub294 jamovi\uc758 \uc0ac\uc6a9\ubc95\uc744 \uc124\uba85\ud558\ub418, jamovi\uc758 \uae30\ubc18\uc774 \ub418\ub294 R \ucf54\ub4dc\ub97c \ud568\uaed8 \uc81c\uc2dc\ud558\uc5ec \ubaa8\uc758 \ub370\uc774\ud130 \uc0dd\uc131\ubd80\ud130 \ubd84\uc11d, \uc2dc\uac01\ud654\uae4c\uc9c0 \uc644\ubcbd\ud558\uac8c \uad6c\ud604\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. 1. \ub2e4\uce35 \ub370\uc774\ud130(Nested Data)\ub780 \ubb34\uc5c7\uc77c\uae4c\uc694? \ud83e\ude86 \ucd08\ub4f1\ud559\uc0dd \uce5c\uad6c\ub4e4\uc5d0\uac8c \ub7ec\uc2dc\uc544\uc758 <a class=\"read-more\" href=\"http:\/\/waurimal.kr\/?p=928\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[399],"tags":[145,199],"class_list":["post-928","post","type-post","status-publish","format-standard","hentry","category-multilevel","tag-jamovi","tag-r"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data) - WaurimaL<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/waurimal.kr\/?p=928\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data) - WaurimaL\" \/>\n<meta property=\"og:description\" content=\"\uc548\ub155\ud558\uc138\uc694! \uc624\ub298\uc740 \ub2e4\uce35\ubd84\uc11d(Multilevel Analysis)\uc744 \ud65c\uc6a9\ud55c \uc120\ud638\ub3c4 \ubc0f \uc0c1\ud638\uc791\uc6a9 \ub370\uc774\ud130 \ubd84\uc11d\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \u201c\ud559\uad50 \ud604\uc7a5\uc758 \ub370\uc774\ud130\u201d\ub97c \uc608\uc2dc\ub85c \ub4e4\uc5b4 \uc9c1\uad00\uc801\uc778 \uc124\uba85\uacfc \uc218\ub9ac\uc801 \uc5c4\ubc00\ud568\uc744 \ubaa8\ub450 \uac16\ucd98 \ud615\ud0dc\ub85c \uc7ac\uad6c\uc131\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. \ubd84\uc11d \ub3c4\uad6c\ub85c\ub294 jamovi\uc758 \uc0ac\uc6a9\ubc95\uc744 \uc124\uba85\ud558\ub418, jamovi\uc758 \uae30\ubc18\uc774 \ub418\ub294 R \ucf54\ub4dc\ub97c \ud568\uaed8 \uc81c\uc2dc\ud558\uc5ec \ubaa8\uc758 \ub370\uc774\ud130 \uc0dd\uc131\ubd80\ud130 \ubd84\uc11d, \uc2dc\uac01\ud654\uae4c\uc9c0 \uc644\ubcbd\ud558\uac8c \uad6c\ud604\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. 1. \ub2e4\uce35 \ub370\uc774\ud130(Nested Data)\ub780 \ubb34\uc5c7\uc77c\uae4c\uc694? \ud83e\ude86 \ucd08\ub4f1\ud559\uc0dd \uce5c\uad6c\ub4e4\uc5d0\uac8c \ub7ec\uc2dc\uc544\uc758 Read more\" \/>\n<meta property=\"og:url\" content=\"http:\/\/waurimal.kr\/?p=928\" \/>\n<meta property=\"og:site_name\" content=\"WaurimaL\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-02T11:16:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-02T11:16:57+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uae00\uc4f4\uc774\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data2\" content=\"4\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=928#article\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=928\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/waurimal.kr\\\/#\\\/schema\\\/person\\\/e761145380f742e758f3c58f1607b704\"},\"headline\":\"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data)\",\"datePublished\":\"2026-03-02T11:16:55+00:00\",\"dateModified\":\"2026-03-02T11:16:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=928\"},\"wordCount\":187,\"keywords\":[\"jamovi\",\"r\"],\"articleSection\":[\"\ub2e4\uce35\ubd84\uc11d\"],\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=928\",\"url\":\"http:\\\/\\\/waurimal.kr\\\/?p=928\",\"name\":\"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data) - WaurimaL\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/waurimal.kr\\\/#website\"},\"datePublished\":\"2026-03-02T11:16:55+00:00\",\"dateModified\":\"2026-03-02T11:16:57+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/waurimal.kr\\\/#\\\/schema\\\/person\\\/e761145380f742e758f3c58f1607b704\"},\"breadcrumb\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=928#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/waurimal.kr\\\/?p=928\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=928#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/waurimal.kr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/waurimal.kr\\\/#website\",\"url\":\"https:\\\/\\\/waurimal.kr\\\/\",\"name\":\"WaurimaL\",\"description\":\"Educational Measurement &amp; Psychometrics\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/waurimal.kr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/waurimal.kr\\\/#\\\/schema\\\/person\\\/e761145380f742e758f3c58f1607b704\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/03ee7b81ff819426120ea367438dcf87383d9de82e834db0cfd335a41108ebc6?s=96&d=robohash&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/03ee7b81ff819426120ea367438dcf87383d9de82e834db0cfd335a41108ebc6?s=96&d=robohash&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/03ee7b81ff819426120ea367438dcf87383d9de82e834db0cfd335a41108ebc6?s=96&d=robohash&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"http:\\\/\\\/waurimal.kr\"],\"url\":\"http:\\\/\\\/waurimal.kr\\\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data) - WaurimaL","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/waurimal.kr\/?p=928","og_locale":"ko_KR","og_type":"article","og_title":"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data) - WaurimaL","og_description":"\uc548\ub155\ud558\uc138\uc694! \uc624\ub298\uc740 \ub2e4\uce35\ubd84\uc11d(Multilevel Analysis)\uc744 \ud65c\uc6a9\ud55c \uc120\ud638\ub3c4 \ubc0f \uc0c1\ud638\uc791\uc6a9 \ub370\uc774\ud130 \ubd84\uc11d\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \u201c\ud559\uad50 \ud604\uc7a5\uc758 \ub370\uc774\ud130\u201d\ub97c \uc608\uc2dc\ub85c \ub4e4\uc5b4 \uc9c1\uad00\uc801\uc778 \uc124\uba85\uacfc \uc218\ub9ac\uc801 \uc5c4\ubc00\ud568\uc744 \ubaa8\ub450 \uac16\ucd98 \ud615\ud0dc\ub85c \uc7ac\uad6c\uc131\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. \ubd84\uc11d \ub3c4\uad6c\ub85c\ub294 jamovi\uc758 \uc0ac\uc6a9\ubc95\uc744 \uc124\uba85\ud558\ub418, jamovi\uc758 \uae30\ubc18\uc774 \ub418\ub294 R \ucf54\ub4dc\ub97c \ud568\uaed8 \uc81c\uc2dc\ud558\uc5ec \ubaa8\uc758 \ub370\uc774\ud130 \uc0dd\uc131\ubd80\ud130 \ubd84\uc11d, \uc2dc\uac01\ud654\uae4c\uc9c0 \uc644\ubcbd\ud558\uac8c \uad6c\ud604\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. 1. \ub2e4\uce35 \ub370\uc774\ud130(Nested Data)\ub780 \ubb34\uc5c7\uc77c\uae4c\uc694? \ud83e\ude86 \ucd08\ub4f1\ud559\uc0dd \uce5c\uad6c\ub4e4\uc5d0\uac8c \ub7ec\uc2dc\uc544\uc758 Read more","og_url":"http:\/\/waurimal.kr\/?p=928","og_site_name":"WaurimaL","article_published_time":"2026-03-02T11:16:55+00:00","article_modified_time":"2026-03-02T11:16:57+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\uae00\uc4f4\uc774":"admin","\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"4\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"http:\/\/waurimal.kr\/?p=928#article","isPartOf":{"@id":"http:\/\/waurimal.kr\/?p=928"},"author":{"name":"admin","@id":"https:\/\/waurimal.kr\/#\/schema\/person\/e761145380f742e758f3c58f1607b704"},"headline":"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data)","datePublished":"2026-03-02T11:16:55+00:00","dateModified":"2026-03-02T11:16:57+00:00","mainEntityOfPage":{"@id":"http:\/\/waurimal.kr\/?p=928"},"wordCount":187,"keywords":["jamovi","r"],"articleSection":["\ub2e4\uce35\ubd84\uc11d"],"inLanguage":"ko-KR"},{"@type":"WebPage","@id":"http:\/\/waurimal.kr\/?p=928","url":"http:\/\/waurimal.kr\/?p=928","name":"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data) - WaurimaL","isPartOf":{"@id":"https:\/\/waurimal.kr\/#website"},"datePublished":"2026-03-02T11:16:55+00:00","dateModified":"2026-03-02T11:16:57+00:00","author":{"@id":"https:\/\/waurimal.kr\/#\/schema\/person\/e761145380f742e758f3c58f1607b704"},"breadcrumb":{"@id":"http:\/\/waurimal.kr\/?p=928#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["http:\/\/waurimal.kr\/?p=928"]}]},{"@type":"BreadcrumbList","@id":"http:\/\/waurimal.kr\/?p=928#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/waurimal.kr\/"},{"@type":"ListItem","position":2,"name":"Chap32. \uc2dc\uc7a5 \uc870\uc0ac\uc640 \uc120\ud638\ub3c4 \uc790\ub8cc(Market Research and Preference Data)"}]},{"@type":"WebSite","@id":"https:\/\/waurimal.kr\/#website","url":"https:\/\/waurimal.kr\/","name":"WaurimaL","description":"Educational Measurement &amp; Psychometrics","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/waurimal.kr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Person","@id":"https:\/\/waurimal.kr\/#\/schema\/person\/e761145380f742e758f3c58f1607b704","name":"admin","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/secure.gravatar.com\/avatar\/03ee7b81ff819426120ea367438dcf87383d9de82e834db0cfd335a41108ebc6?s=96&d=robohash&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/03ee7b81ff819426120ea367438dcf87383d9de82e834db0cfd335a41108ebc6?s=96&d=robohash&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/03ee7b81ff819426120ea367438dcf87383d9de82e834db0cfd335a41108ebc6?s=96&d=robohash&r=g","caption":"admin"},"sameAs":["http:\/\/waurimal.kr"],"url":"http:\/\/waurimal.kr\/?author=1"}]}},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/waurimal.kr\/index.php?rest_route=\/wp\/v2\/posts\/928","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/waurimal.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/waurimal.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/waurimal.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/waurimal.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=928"}],"version-history":[{"count":1,"href":"http:\/\/waurimal.kr\/index.php?rest_route=\/wp\/v2\/posts\/928\/revisions"}],"predecessor-version":[{"id":929,"href":"http:\/\/waurimal.kr\/index.php?rest_route=\/wp\/v2\/posts\/928\/revisions\/929"}],"wp:attachment":[{"href":"http:\/\/waurimal.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/waurimal.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=928"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/waurimal.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}