{"id":734,"date":"2026-01-19T13:43:30","date_gmt":"2026-01-19T04:43:30","guid":{"rendered":"http:\/\/waurimal.kr\/?p=734"},"modified":"2026-01-19T13:43:31","modified_gmt":"2026-01-19T04:43:31","slug":"chap06-%ec%98%88%ec%b8%a1-%eb%b3%80%ec%88%98-%ec%a4%91%ec%8b%ac%ed%99%94%ec%99%80-%eb%a7%a5%eb%9d%bd-%ed%9a%a8%ea%b3%bc","status":"publish","type":"post","link":"http:\/\/waurimal.kr\/?p=734","title":{"rendered":"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc"},"content":{"rendered":"\n<p>\uc548\ub155\ud558\uc138\uc694!<\/p>\n\n\n\n<p>\uc624\ub298\uc740 \ub2e4\uce35\ubaa8\ud615(Multilevel Modeling) \ubd84\uc11d\uc758 \ud575\uc2ec\uc774\uba74\uc11c\ub3c4 \ub9ce\uc740 \uc5f0\uad6c\uc790\uac00 \uac00\uc7a5 \ud5f7\uac08\ub824 \ud558\ub294 \uc8fc\uc81c, \ubc14\ub85c <strong>&#8220;\uc608\uce21\ubcc0\uc218\uc758 \uc911\uc2ec\ud654(Centering Predictors)&#8221;<\/strong>\uc640 <strong>&#8220;\ub9e5\ub77d \ud6a8\uacfc(Contextual Effects)&#8221;<\/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 \ucd08\ub4f1\ud559\uc0dd\ub3c4 \uc774\ud574\ud560 \uc218 \uc788\ub294 \uc9c1\uad00\uc801\uc778 \uc124\uba85\uacfc \ub300\ud559\uc6d0 \uc218\uc900\uc758 \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 <strong>jamovi<\/strong>\uc758 \uc0ac\uc6a9\ubc95\uc744 \uc124\uba85\ud558\ub418, jamovi\uc758 \uae30\ubc18\uc774 \ub418\ub294 <strong>R<\/strong> \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<h2 class=\"wp-block-heading\">1. \ub2e4\uce35\ubd84\uc11d \uc5ec\ud589\uc744 \uc704\ud55c \uc2dc\ub098\ub9ac\uc624: &#8220;\uc218\ud559 \ubd88\uc548&#8221;\uacfc &#8220;\ud559\uc5c5 \uc131\ucde8&#8221;<\/h2>\n\n\n\n<p>\uc790, \uc6b0\ub9ac\uac00 \uad50\uc721\uccad\uc758 \uc758\ub8b0\ub97c \ubc1b\uc740 \uc5f0\uad6c\uc790\ub77c\uace0 \uc0c1\uc0c1\ud574 \ubd05\uc2dc\ub2e4. \uc6b0\ub9ac\ub294 <strong>&#8216;\uc218\ud559 \ubd88\uc548(Math Anxiety)&#8217;<\/strong>\uc774 <strong>&#8216;\uc218\ud559 \ubb38\uc81c \ud574\uacb0\ub825(Math Problem Solving)&#8217;<\/strong>\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc744 \uc54c\uace0 \uc2f6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ub370\uc774\ud130 \uad6c\uc870:<\/strong> \ud559\uc0dd(<math data-latex=\"i\"><semantics><mi>i<\/mi><annotation encoding=\"application\/x-tex\">i<\/annotation><\/semantics><\/math>)\ub4e4\uc774 \ud559\uad50(<math data-latex=\"j\"><semantics><mi>j<\/mi><annotation encoding=\"application\/x-tex\">j<\/annotation><\/semantics><\/math>)\uc5d0 \uc18c\uc18d\ub41c 2\uc218\uc900(2-level) \uad6c\uc870\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ubcc0\uc218:<\/strong>\n<ul class=\"wp-block-list\">\n<li><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> (\uc885\uc18d\ubcc0\uc218): \uc218\ud559 \ubb38\uc81c \ud574\uacb0\ub825 \uc810\uc218<\/li>\n\n\n\n<li><math data-latex=\"x_{ij}\"><semantics><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><annotation encoding=\"application\/x-tex\">x_{ij}<\/annotation><\/semantics><\/math> (\ub3c5\ub9bd\ubcc0\uc218): \uc218\ud559 \ubd88\uc548 \uc810\uc218 (\ub192\uc744\uc218\ub85d \ubd88\uc548\ud568)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\ub2e8\uc21c \ud68c\uadc0\ubd84\uc11d\uacfc \ub2ec\ub9ac, \ub2e4\uce35\ubaa8\ud615\uc5d0\uc11c\ub294 \uc774 <math data-latex=\"x_{ij}\"><semantics><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><annotation encoding=\"application\/x-tex\">x_{ij}<\/annotation><\/semantics><\/math>(\ubd88\uc548 \uc810\uc218)\ub97c \uadf8\ub0e5 \ub123\uc744\uc9c0, \uc544\ub2c8\uba74 \uac00\uacf5\ud574\uc11c \ub123\uc744\uc9c0\uc5d0 \ub530\ub77c \uacb0\uacfc \ud574\uc11d\uc774 \uc644\uc804\ud788 \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc5ec\uae30\uc11c &#8220;\uac00\uacf5&#8221;\ud558\ub294 \ubc29\ubc95\uc774 \ubc14\ub85c <strong>\uc911\uc2ec\ud654(Centering)<\/strong>\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \uc65c \uc911\uc2ec\ud654(Centering)\uac00 \uc911\uc694\ud55c\uac00\uc694?<\/h2>\n\n\n\n<p>\ub2e8\uc77c \uc218\uc900(Single-level) \ud68c\uadc0\ubd84\uc11d\uc5d0\uc11c\ub294 \uc810\uc218\ub97c \uc911\uc2ec\ud654(\uc608: \ud3c9\uade0 \ube7c\uae30)\ud558\ub354\ub77c\ub3c4 \uc808\ud3b8\ub9cc \ubc14\ub00c\uace0 \uae30\uc6b8\uae30\ub294 \uadf8\ub300\ub85c\uc785\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ub2e4\uce35\ubaa8\ud615\uc5d0\uc11c\ub294 \uc911\uc2ec\ud654 \ubc29\uc2dd\uc5d0 \ub530\ub77c <strong>\uae30\uc6b8\uae30 \ucd94\uc815\uce58(Slope)<\/strong>\uc640 <strong>\ubaa8\ud615 \uc801\ud569\ub3c4<\/strong>\uac00 \ubaa8\ub450 \ubc14\ub014 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774\uc720\ub294 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ud559\uc0dd\uc758 \uc810\uc218(<math data-latex=\"x_{ij}\"><semantics><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><annotation encoding=\"application\/x-tex\">x_{ij}<\/annotation><\/semantics><\/math>)\ub294 \ub450 \uac00\uc9c0 \uc815\ubcf4\ub97c \ub3d9\uc2dc\uc5d0 \ub2f4\uace0 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p><math data-latex=\"x_{ij} - \\bar{x} = (x_{ij} - \\bar{x}_j) + (\\bar{x}_j - \\bar{x})\"><semantics><mrow><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>\u2212<\/mo><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mo>=<\/mo><mo form=\"prefix\" stretchy=\"false\">(<\/mo><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>\u2212<\/mo><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mo>+<\/mo><mo form=\"prefix\" stretchy=\"false\">(<\/mo><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><mo>\u2212<\/mo><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mo form=\"postfix\" stretchy=\"false\">)<\/mo><\/mrow><annotation encoding=\"application\/x-tex\">x_{ij} &#8211; \\bar{x} = (x_{ij} &#8211; \\bar{x}_j) + (\\bar{x}_j &#8211; \\bar{x})<\/annotation><\/semantics><\/math><\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\ud559\uad50 \ub0b4 \uc704\uce58 (<\/strong><math data-latex=\"W_x\"><semantics><msub><mi>W<\/mi><mi>x<\/mi><\/msub><annotation encoding=\"application\/x-tex\">W_x<\/annotation><\/semantics><\/math><strong>):<\/strong> \uc6b0\ub9ac \ud559\uad50 \uce5c\uad6c\ub4e4\uc5d0 \ube44\ud574 \ub0b4\uac00 \uc5bc\ub9c8\ub098 \ubd88\uc548\ud55c\uac00? <math data-latex=\"(x_{ij} - \\bar{x}_j)\"><semantics><mrow><mo form=\"prefix\" stretchy=\"false\">(<\/mo><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>\u2212<\/mo><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><mo form=\"postfix\" stretchy=\"false\">)<\/mo><\/mrow><annotation encoding=\"application\/x-tex\">(x_{ij} &#8211; \\bar{x}_j)<\/annotation><\/semantics><\/math><\/li>\n\n\n\n<li><strong>\ud559\uad50 \uac04 \ucc28\uc774 (<\/strong><math data-latex=\"B_x\"><semantics><msub><mi>B<\/mi><mi>x<\/mi><\/msub><annotation encoding=\"application\/x-tex\">B_x<\/annotation><\/semantics><\/math><strong>):<\/strong> \uc6b0\ub9ac \ud559\uad50\uac00 \ub2e4\ub978 \ud559\uad50\uc5d0 \ube44\ud574 \ud3c9\uade0\uc801\uc73c\ub85c \uc5bc\ub9c8\ub098 \ubd88\uc548\ud55c\uac00? <math data-latex=\"(\\bar{x}_j - \\bar{x})\"><semantics><mrow><mo form=\"prefix\" stretchy=\"false\">(<\/mo><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><mo>\u2212<\/mo><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mo form=\"postfix\" stretchy=\"false\">)<\/mo><\/mrow><annotation encoding=\"application\/x-tex\">(\\bar{x}_j &#8211; \\bar{x})<\/annotation><\/semantics><\/math><\/li>\n<\/ol>\n\n\n\n<p>\uc774 \ub450 \uac00\uc9c0\ub97c \uc5b4\ub5bb\uac8c \ucc98\ub9ac\ud558\ub290\ub0d0\uc5d0 \ub530\ub77c <strong>\uc804\uccb4 \ud3c9\uade0 \uc911\uc2ec\ud654(CGM)<\/strong>\uc640 <strong>\uc9d1\ub2e8 \ud3c9\uade0 \uc911\uc2ec\ud654(CWC)<\/strong>\ub85c \ub098\ub269\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \ub450 \uac00\uc9c0 \uc911\uc2ec\ud654 \ubc29\ubc95: CGM vs. CWC<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">(1) \uc804\uccb4 \ud3c9\uade0 \uc911\uc2ec\ud654 (Grand Mean Centering: CGM)<\/h3>\n\n\n\n<p>\ubaa8\ub4e0 \ud559\uc0dd\uc758 \uc810\uc218\uc5d0\uc11c <strong>\uc804\uccb4 \ud3c9\uade0(<\/strong><math data-latex=\"\\bar{x}\"><semantics><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><annotation encoding=\"application\/x-tex\">\\bar{x}<\/annotation><\/semantics><\/math><strong>)<\/strong>\uc744 \ube8d\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc218\uc2dd:<\/strong> <math data-latex=\"x_{ij} - \\bar{x}\"><semantics><mrow><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>\u2212<\/mo><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><\/mrow><annotation encoding=\"application\/x-tex\">x_{ij} &#8211; \\bar{x}<\/annotation><\/semantics><\/math><\/li>\n\n\n\n<li><strong>\uc758\ubbf8:<\/strong> &#8220;\uc804\uad6d \ud3c9\uade0\uc5d0 \ube44\ud574 \ub0b4 \ubd88\uc548\ub3c4\uac00 \uc5bc\ub9c8\ub098 \ub192\uc740\uac00?&#8221; (\uc808\ub300\uc801\uc778 \uc218\uc900)<\/li>\n\n\n\n<li><strong>\ud2b9\uc9d5:<\/strong>\n<ul class=\"wp-block-list\">\n<li>\uc6d0\uc810\uc218\uc640 \uc815\ubcf4\ub7c9\uc774 \uac19\uc2b5\ub2c8\ub2e4. \ub2e8\uc9c0 0\uc810\uc758 \uc704\uce58\ub9cc \ubc14\ub01d\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud559\uad50 \uac04 \ucc28\uc774(\ud559\uad50 \ud3c9\uade0\uc758 \ucc28\uc774)\uac00 \uadf8\ub300\ub85c \ubcf4\uc874\ub429\ub2c8\ub2e4<\/strong>.<\/li>\n\n\n\n<li>\ub530\ub77c\uc11c CGM\uc744 \uc0ac\uc6a9\ud55c \uae30\uc6b8\uae30(<math data-latex=\"\\beta_{CGM}\"><semantics><msub><mi>\u03b2<\/mi><mrow><mi>C<\/mi><mi>G<\/mi><mi>M<\/mi><\/mrow><\/msub><annotation encoding=\"application\/x-tex\">\\beta_{CGM}<\/annotation><\/semantics><\/math>)\ub294 <strong>\ud559\uc0dd \uac1c\uc778\uc758 \ud6a8\uacfc\uc640 \ud559\uad50 \ubd84\uc704\uae30\uc758 \ud6a8\uacfc\uac00 \uc11e\uc5ec \uc788\ub294(Composite)<\/strong> \uac12\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">(2) \uc9d1\ub2e8 \ud3c9\uade0 \uc911\uc2ec\ud654 (Group Mean Centering: CWC)<\/h3>\n\n\n\n<p>\ud559\uc0dd\uc758 \uc810\uc218\uc5d0\uc11c <strong>\uadf8 \ud559\uc0dd\uc774 \uc18d\ud55c \ud559\uad50\uc758 \ud3c9\uade0(<math data-latex=\"\\bar{x}_j\"><semantics><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><annotation encoding=\"application\/x-tex\">\\bar{x}_j<\/annotation><\/semantics><\/math>)<\/strong>\uc744 \ube8d\ub2c8\ub2e4. \uc774\ub97c &#8216;\ub9e5\ub77d \ub0b4 \uc911\uc2ec\ud654(Centering Within Context)&#8217;\ub77c\uace0\ub3c4 \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc218\uc2dd:<\/strong> <math data-latex=\"x_{ij} - \\bar{x}_j\"><semantics><mrow><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>\u2212<\/mo><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><\/mrow><annotation encoding=\"application\/x-tex\">x_{ij} &#8211; \\bar{x}_j<\/annotation><\/semantics><\/math><\/li>\n\n\n\n<li><strong>\uc758\ubbf8:<\/strong> &#8220;\uc6b0\ub9ac \ud559\uad50 \uce5c\uad6c\ub4e4\uc5d0 \ube44\ud574 \ub0b4\uac00 \uc5bc\ub9c8\ub098 \ub354 \ubd88\uc548\ud55c\uac00?&#8221; (\uc0c1\ub300\uc801\uc778 \uc218\uc900)<\/li>\n\n\n\n<li><strong>\ud2b9\uc9d5:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\ud559\uad50 \uac04 \ucc28\uc774\ub97c \uc644\uc804\ud788 \uc81c\uac70\ud569\ub2c8\ub2e4.<\/strong> \ubaa8\ub4e0 \ud559\uad50\uc758 \ud3c9\uade0\uc774 0\uc774 \ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc774 \ubcc0\uc218\ub294 \uc624\uc9c1 <strong>\ud559\uad50 \ub0b4(Within-cluster)<\/strong> \ubcc0\ub3d9\ub9cc \ub2f4\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub530\ub77c\uc11c CWC\ub97c \uc0ac\uc6a9\ud55c \uae30\uc6b8\uae30(<math data-latex=\"\\beta_{CWC}\"><semantics><msub><mi>\u03b2<\/mi><mrow><mi>C<\/mi><mi>W<\/mi><mi>C<\/mi><\/mrow><\/msub><annotation encoding=\"application\/x-tex\">\\beta_{CWC}<\/annotation><\/semantics><\/math>)\ub294 \uc21c\uc218\ud55c <strong>\uac1c\uc778 \uc218\uc900(\ud559\uc0dd \uc218\uc900)\uc758 \ud6a8\uacfc<\/strong>\ub9cc\uc744 \ucd94\uc815\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><em>(\uc704 \ud0dc\uadf8\ub294 CWC\uc758 \uac1c\ub150\uc778 &#8216;\uac1c\uad6c\ub9ac \uc5f0\ubabb \ud6a8\uacfc(Frog Pond Effect)&#8217;\ub97c \uc2dc\uac01\uc801\uc73c\ub85c \uc774\ud574\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub0b4\uac00 \uc18d\ud55c \uc5f0\ubabb(\ud559\uad50) \ub0b4\uc5d0\uc11c\uc758 \uc0c1\ub300\uc801 \uc704\uce58\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.)<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. \ub9e5\ub77d \ud6a8\uacfc(Contextual Effects)\uc640 &#8220;\uac1c\uad6c\ub9ac \uc5f0\ubabb&#8221;<\/h2>\n\n\n\n<p>\uc5f0\uad6c\uc790\uac00 \ud754\ud788 \ubc94\ud558\ub294 \uc2e4\uc218\ub294 &#8220;CWC\uac00 \ud559\uad50 \ud6a8\uacfc\ub97c \uc81c\uac70\ud558\ub2c8\uae4c \ub354 \uc88b\uc740 \uac83 \uc544\ub2cc\uac00?&#8221;\ub77c\uace0 \uc0dd\uac01\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ud558\uc9c0\ub9cc <strong>\uc5f0\uad6c \uc9c8\ubb38(Research Question)<\/strong>\uc5d0 \ub530\ub77c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc5ec\uae30\uc11c <strong>\ub9e5\ub77d \ubaa8\ud615(Contextual Model)<\/strong>\uc774 \ub4f1\uc7a5\ud569\ub2c8\ub2e4. \uc774\uac83\uc740 \uac1c\uc778\uc758 \uc810\uc218(<math data-latex=\"x_{ij}\"><semantics><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><annotation encoding=\"application\/x-tex\">x_{ij}<\/annotation><\/semantics><\/math>)\uc640 \ud559\uad50\uc758 \ud3c9\uade0 \uc810\uc218(<math data-latex=\"\\bar{x}_j\"><semantics><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><annotation encoding=\"application\/x-tex\">\\bar{x}_j<\/annotation><\/semantics><\/math>)\ub97c \ub3d9\uc2dc\uc5d0 \ubaa8\ud615\uc5d0 \ub123\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc218\uc2dd \ube44\uad50<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>CWC \ubaa8\ub378:<\/strong> <math data-latex=\"y_{ij} = \\beta_0 + \\beta_{1}(x_{ij} - \\bar{x}_j) + \\beta_{2}(\\bar{x}_j - \\bar{x}) + \\dots\"><semantics><mrow><msub><mi>y<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>=<\/mo><msub><mi>\u03b2<\/mi><mn>0<\/mn><\/msub><mo>+<\/mo><msub><mi>\u03b2<\/mi><mn>1<\/mn><\/msub><mo form=\"prefix\" stretchy=\"false\">(<\/mo><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>\u2212<\/mo><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mo>+<\/mo><msub><mi>\u03b2<\/mi><mn>2<\/mn><\/msub><mo form=\"prefix\" stretchy=\"false\">(<\/mo><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><mo>\u2212<\/mo><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mo>+<\/mo><mo>\u2026<\/mo><\/mrow><annotation encoding=\"application\/x-tex\">y_{ij} = \\beta_0 + \\beta_{1}(x_{ij} &#8211; \\bar{x}_j) + \\beta_{2}(\\bar{x}_j &#8211; \\bar{x}) + \\dots<\/annotation><\/semantics><\/math>\n<ul class=\"wp-block-list\">\n<li><math data-latex=\"\\beta_1\"><semantics><msub><mi>\u03b2<\/mi><mn>1<\/mn><\/msub><annotation encoding=\"application\/x-tex\">\\beta_1<\/annotation><\/semantics><\/math>: <strong>\uac1c\uc778 \ud6a8\uacfc<\/strong> (\ud559\uad50 \ub0b4\uc5d0\uc11c \ubd88\uc548\uc774 1\ub2e8\uc704 \ub192\uc744 \ub54c \uc131\uc801 \ubcc0\ud654)<\/li>\n\n\n\n<li><math data-latex=\"\\beta_2\"><semantics><msub><mi>\u03b2<\/mi><mn>2<\/mn><\/msub><annotation encoding=\"application\/x-tex\">\\beta_2<\/annotation><\/semantics><\/math>: <strong>\ub9e5\ub77d \ud6a8\uacfc(\ud559\uad50 \ud6a8\uacfc)<\/strong> (\ud559\uad50 \ud3c9\uade0 \ubd88\uc548\uc774 1\ub2e8\uc704 \ub192\uc744 \ub54c \ud559\uad50 \ud3c9\uade0 \uc131\uc801 \ubcc0\ud654)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>CGM \ubaa8\ub378:<\/strong> <math data-latex=\"y_{ij} = \\beta_0 + \\beta_{1}(x_{ij} - \\bar{x}) + \\beta_{2}(\\bar{x}_j - \\bar{x}) + \\dots\"><semantics><mrow><msub><mi>y<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>=<\/mo><msub><mi>\u03b2<\/mi><mn>0<\/mn><\/msub><mo>+<\/mo><msub><mi>\u03b2<\/mi><mn>1<\/mn><\/msub><mo form=\"prefix\" stretchy=\"false\">(<\/mo><msub><mi>x<\/mi><mrow><mi>i<\/mi><mi>j<\/mi><\/mrow><\/msub><mo>\u2212<\/mo><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mo>+<\/mo><msub><mi>\u03b2<\/mi><mn>2<\/mn><\/msub><mo form=\"prefix\" stretchy=\"false\">(<\/mo><msub><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mi>j<\/mi><\/msub><mo>\u2212<\/mo><mover><mi>x<\/mi><mo stretchy=\"false\" class=\"tml-xshift\" style=\"math-style:normal;math-depth:0;\">\u203e<\/mo><\/mover><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mo>+<\/mo><mo>\u2026<\/mo><\/mrow><annotation encoding=\"application\/x-tex\">y_{ij} = \\beta_0 + \\beta_{1}(x_{ij} &#8211; \\bar{x}) + \\beta_{2}(\\bar{x}_j &#8211; \\bar{x}) + \\dots<\/annotation><\/semantics><\/math>\n<ul class=\"wp-block-list\">\n<li>\ud765\ubbf8\ub86d\uac8c\ub3c4, \uc774 \uacbd\uc6b0 <math data-latex=\"\\beta_2\"><semantics><msub><mi>\u03b2<\/mi><mn>2<\/mn><\/msub><annotation encoding=\"application\/x-tex\">\\beta_2<\/annotation><\/semantics><\/math>\ub294 \ud559\uad50 \ud3c9\uade0\uc758 \ud6a8\uacfc\uc640 \uac1c\uc778 \ud6a8\uacfc\uc758 <strong>\ucc28\uc774(Difference)<\/strong>\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud575\uc2ec \uc694\uc57d:<\/p>\n\n\n\n<p>\ub9e5\ub77d \ud6a8\uacfc\ub97c \ubd84\uc11d\ud560 \ub54c CGM\uacfc CWC\ub294 \uc218\ud559\uc801\uc73c\ub85c <strong>\ub3d9\ub4f1(Equivalent)<\/strong>\ud569\ub2c8\ub2e4. \ub2e8\uc9c0 \ud574\uc11d\uc774 \ub2e4\ub97c \ubfd0\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CWC\uc758 <\/strong><math data-latex=\"\\beta_2\"><semantics><msub><mi>\u03b2<\/mi><mn>2<\/mn><\/msub><annotation encoding=\"application\/x-tex\">\\beta_2<\/annotation><\/semantics><\/math><strong>:<\/strong> \ud559\uad50 \ud3c9\uade0\uc774 \uc131\uc801\uc5d0 \ubbf8\uce58\ub294 <strong>\uc9c1\uc811\uc801\uc778 \uc601\ud5a5<\/strong>.<\/li>\n\n\n\n<li><strong>CGM\uc758 <\/strong><math data-latex=\"\\beta_2\"><semantics><msub><mi>\u03b2<\/mi><mn>2<\/mn><\/msub><annotation encoding=\"application\/x-tex\">\\beta_2<\/annotation><\/semantics><\/math><strong>:<\/strong> (\ud559\uad50 \ud6a8\uacfc) &#8211; (\uac1c\uc778 \ud6a8\uacfc)\uc758 <strong>\ucc28\uc774 \uac12<\/strong>.<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \uad50\uc218\ub2d8\uc758 \uc870\uc5b8: \uc5b8\uc81c \ubb34\uc5c7\uc744 \uc368\uc57c \ud560\uae4c\uc694?<\/h2>\n\n\n\n<p>Enders \uad50\uc218\uc758 \ucc55\ud130 \ub0b4\uc6a9\uc744 \ubc14\ud0d5\uc73c\ub85c \uba85\ucf8c\ud55c \uac00\uc774\ub4dc\ub77c\uc778\uc744 \ud45c\ub85c \uc815\ub9ac\ud574 \ub4dc\ub9bd\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>\uc5f0\uad6c \ubaa9\uc801<\/strong><\/td><td><strong>\ucd94\ucc9c \ubc29\ubc95<\/strong><\/td><td><strong>\uc774\uc720<\/strong><\/td><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>1. \ub9e5\ub77d \ud6a8\uacfc \ud655\uc778<\/strong> (\ud559\uad50 \ubd84\uc704\uae30\uac00 \uc911\uc694\ud55c\uac00?)<\/td><td><strong>\ub458 \ub2e4 \uac00\ub2a5<\/strong><\/td><td>CGM\uacfc CWC\ub294 \uc218\ud559\uc801\uc73c\ub85c \ubcc0\ud658 \uac00\ub2a5\ud558\uba70 \ub3d9\uc77c\ud55c \ubaa8\ud615 \uc801\ud569\ub3c4\ub97c \uac00\uc9d0.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>2. 2\uc218\uc900 \uc608\uce21\ubcc0\uc218<\/strong> (\uc608: \ud559\uad50 \uc124\ub9bd \uc720\ud615)<\/td><td><strong>CGM<\/strong><\/td><td>2\uc218\uc900 \ubcc0\uc218\ub294 \ud559\uad50 \ub0b4 \ubcc0\ub3d9\uc774 \uc5c6\uc73c\ubbc0\ub85c CWC\uac00 \ubd88\uac00\ub2a5\ud568. \ubcf4\ud1b5 \uc804\uccb4 \ud3c9\uade0 \uc911\uc2ec\ud654 \uc0ac\uc6a9.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>3. 1\uc218\uc900 \uc608\uce21\ubcc0\uc218 (\uac1c\uc778 \ud2b9\uc131)<\/strong><\/td><td><strong>\uc774\ub860\uc5d0 \ub530\ub77c<\/strong><\/td><td><strong>\uc808\ub300\uc801 \uc218\uce58<\/strong>\uac00 \uc911\uc694\ud558\uba74(\uc608: \uc808\ub300\uc801\uc778 \uacf5\ubd80 \uc2dc\uac04) <strong>CGM<\/strong>.<br><strong>\uc0c1\ub300\uc801 \uc704\uce58<\/strong>\uac00 \uc911\uc694\ud558\uba74(\uc608: \uc790\uc544\uac1c\ub150, \uce5c\uad6c\uc640\uc758 \ube44\uad50) <strong>CWC<\/strong>.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>4. \uc0c1\ud638\uc791\uc6a9 \ud6a8\uacfc<\/strong> (\uc870\uc808\ud6a8\uacfc \ubd84\uc11d)<\/td><td><strong>CWC \uad8c\uc7a5<\/strong><\/td><td>CGM \uc0ac\uc6a9 \uc2dc &#8216;\uc218\uc900 \uac04 \uc0c1\ud638\uc791\uc6a9(Cross-level)&#8217;\uacfc &#8216;\uc9d1\ub2e8 \uac04 \uc0c1\ud638\uc791\uc6a9&#8217;\uc774 \ub4a4\uc11e\uc5ec \ud574\uc11d\uc774 \ubaa8\ud638\ud574\uc9c8 \uc704\ud5d8\uc774 \ud07c.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>5. \ud1b5\uc81c\ubcc0\uc218<\/strong> (\ub2e8\uc21c\ud788 \ud1b5\uc81c\ub9cc \ud560 \ub54c)<\/td><td><strong>CGM<\/strong><\/td><td>\uacf5\ubcc0\ub7c9 \ubd84\uc11d(ANCOVA)\ucc98\ub7fc \ud559\uad50 \uac04 \ucc28\uc774\ub97c \uc870\uc815(Adjust)\ud558\uc5ec 2\uc218\uc900 \ud6a8\uacfc\ub97c \uc21c\uc218\ud558\uac8c \ubcf4\ub824\uba74 CGM\uc774 \uc801\uc808\ud568.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. R\uacfc jamovi\ub97c \uc774\uc6a9\ud55c \uc2e4\uc2b5<\/h2>\n\n\n\n<p>\uc774\uc81c \uc774\ub860\uc744 \uc2e4\uc81c \ub370\uc774\ud130\ub85c \uad6c\ud604\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(1) \uac00\uc0c1 \ub370\uc774\ud130 \uc0dd\uc131 (R Code)<\/h3>\n\n\n\n<p>\uc774 \ucf54\ub4dc\ub294 \ucc55\ud130\uc758 \uc608\uc81c(Montague et al., 2011)\uc640 \uc720\uc0ac\ud55c \uad6c\uc870\ub85c, 40\uac1c \ud559\uad50\uc5d0 25\uba85\uc529 \ucd1d 1,000\uba85\uc758 \ud559\uc0dd \ub370\uc774\ud130\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>R<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \ud544\uc694\ud55c \ud328\ud0a4\uc9c0 \ub85c\ub4dc\nif(!require(MASS)) install.packages(\"MASS\")\nif(!require(lme4)) install.packages(\"lme4\")\nif(!require(tidyverse)) install.packages(\"tidyverse\")\nif(!require(jmv)) install.packages(\"jmv\") # jamovi \uc5f0\ub3d9\n\nset.seed(12345)\n\n# 1. \ud30c\ub77c\ubbf8\ud130 \uc124\uc815\nn_schools &lt;- 40       # \ud559\uad50 \uc218\nn_students &lt;- 25      # \ud559\uad50\ub2f9 \ud559\uc0dd \uc218\ntotal_n &lt;- n_schools * n_students\n\n# 2. \ud559\uad50 \uc218\uc900(Level 2) \ub370\uc774\ud130 \uc0dd\uc131\n# \ud559\uad50 \ud3c9\uade0 \ubd88\uc548\uac10(School_Anxiety_Mean)\uacfc \ud559\uad50 \ud6a8\uacfc(u0j)\nschool_data &lt;- data.frame(\n  school_id = 1:n_schools,\n  school_anx_mean = rnorm(n_schools, mean = 0, sd = 1), # \ud559\uad50\ubcc4 \ubd88\uc548 \ud3c9\uade0\n  u0j = rnorm(n_schools, mean = 0, sd = sqrt(4.8)) # \uc808\ud3b8\uc758 \ubcc0\ub3d9 (\uc57d 4.8) &#91;cite: 156]\n)\n\n# 3. \ud559\uc0dd \uc218\uc900(Level 1) \ub370\uc774\ud130 \uc0dd\uc131\ndata &lt;- data.frame(\n  student_id = 1:total_n,\n  school_id = rep(1:n_schools, each = n_students)\n)\n\n# \ud559\uad50 \ub370\uc774\ud130 \ubcd1\ud569\ndata &lt;- merge(data, school_data, by = \"school_id\")\n\n# \ud559\uc0dd \uac1c\uc778\uc758 \ubd88\uc548\uac10 \uc0dd\uc131 (\ud559\uad50 \ud3c9\uade0 + \uac1c\uc778 \ud3b8\ucc28)\n# Within-school SD = 1, Between-school SD = 1\ndata$math_anx_raw &lt;- data$school_anx_mean + rnorm(total_n, mean = 0, sd = 1)\n\n# 4. \uc885\uc18d\ubcc0\uc218(\uc218\ud559 \ubb38\uc81c\ud574\uacb0\ub825) \uc0dd\uc131\n# \ubaa8\ud615: Y = 10.73 + 0.33*(Within_Anx) + 0.85*(Between_Anx) + Error &#91;cite: 321]\n# CWC \uacc4\uc218: 0.33, Contextual \uacc4\uc218(B2): 0.85 \uac00\uc815\nbeta_0 &lt;- 10.73\nbeta_within &lt;- 0.33\nbeta_between &lt;- 0.85\nsigma_e &lt;- sqrt(4.54) # &#91;cite: 156]\n\n# \ubcc0\uc218 \uacc4\uc0b0\ndata$anx_group_mean &lt;- ave(data$math_anx_raw, data$school_id, FUN = mean) # \uc9d1\ub2e8 \ud3c9\uade0\ndata$anx_cwc &lt;- data$math_anx_raw - data$anx_group_mean # CWC \ubcc0\uc218\ndata$anx_grand_mean &lt;- mean(data$math_anx_raw) # \uc804\uccb4 \ud3c9\uade0\ndata$anx_cgm &lt;- data$math_anx_raw - data$anx_grand_mean # CGM \ubcc0\uc218\ndata$school_anx_centered &lt;- data$anx_group_mean - data$anx_grand_mean # \uc911\uc2ec\ud654\ub41c \ud559\uad50 \ud3c9\uade0\n\n# \uc885\uc18d\ubcc0\uc218 \uc0dd\uc131 \uc218\uc2dd (Contextual Model \uae30\ubc18)\ndata$math_score &lt;- beta_0 + \n  beta_within * data$anx_cwc + \n  beta_between * data$school_anx_centered + \n  data$u0j + \n  rnorm(total_n, 0, sigma_e)\n\n# \ub370\uc774\ud130 \ud655\uc778\nhead(data)\n<\/code><\/pre>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-d96335ed-179e-4840-b6dc-849cdc2e1ea0\" href=\"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/chap06.csv\">chap06<\/a><a href=\"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/chap06.csv\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-d96335ed-179e-4840-b6dc-849cdc2e1ea0\">\ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">(2) jamovi \ubd84\uc11d \uac00\uc774\ub4dc<\/h3>\n\n\n\n<p>jamovi\uc5d0\uc11c\ub294 <code>GAMj<\/code> \ubaa8\ub4c8\uc744 \uc4f0\uac70\ub098 \uae30\ubcf8 <code>Linear Models<\/code> -> <code>Mixed Model<\/code>\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uac00\uc7a5 \uba85\ud655\ud55c \ubc29\ubc95\uc740 \uc704 R \ucf54\ub4dc\ucc98\ub7fc <strong>\ubcc0\uc218\ub97c \ubbf8\ub9ac \uacc4\uc0b0(Compute)<\/strong>\ud574\uc11c \ud22c\uc785\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>Step 1: \ubcc0\uc218 \uc0dd\uc131 (jamovi &#8216;Data&#8217; \ud0ed)<\/strong><\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Group Mean (\ud559\uad50 \ud3c9\uade0) \ub9cc\ub4e4\uae30:<\/strong>\n<ul class=\"wp-block-list\">\n<li>New Computed Variable -> \uc774\ub984: <code>Mean_Anx_School<\/code><\/li>\n\n\n\n<li>\uc218\uc2dd: <code>VMEAN(Math_Anx, group_by=School_ID)<\/code> (\uc774 \uae30\ub2a5\uc774 \uc5c6\ub2e4\uba74 R\uc5d0\uc11c \ub9cc\ub4e4\uc5b4 \uac00\uc838\uc624\ub294 \uac83\uc744 \ucd94\ucc9c)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>CWC \ubcc0\uc218 \ub9cc\ub4e4\uae30:<\/strong>\n<ul class=\"wp-block-list\">\n<li>New Computed Variable -> \uc774\ub984: <code>Anx_CWC<\/code><\/li>\n\n\n\n<li>\uc218\uc2dd: <code>Math_Anx - Mean_Anx_School<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>CGM \ubcc0\uc218 \ub9cc\ub4e4\uae30:<\/strong>\n<ul class=\"wp-block-list\">\n<li>New Computed Variable -> \uc774\ub984: <code>Anx_CGM<\/code><\/li>\n\n\n\n<li>\uc218\uc2dd: <code>Math_Anx - VMEAN(Math_Anx)<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><strong>Step 2: \ubd84\uc11d \uc2e4\ud589 (Analyses -&gt; Mixed Models)<\/strong><\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>CWC \ubaa8\ud615 \ubd84\uc11d:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Dependent Variable: <code>Math_Score<\/code><\/li>\n\n\n\n<li>Cluster: <code>School_ID<\/code><\/li>\n\n\n\n<li>Covariates: <code>Anx_CWC<\/code> (Fixed Effect\uc5d0 \ucd94\uac00)<\/li>\n\n\n\n<li>Random Effects: Intercept\uc5d0 <code>School_ID<\/code> \uccb4\ud06c.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\ub9e5\ub77d \ubaa8\ud615(Contextual Model) \ubd84\uc11d:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Covariates\uc5d0 <code>Anx_CWC<\/code>\uc640 <code>Mean_Anx_School<\/code> \ub450 \uac1c\ub97c \ub3d9\uc2dc\uc5d0 \ub123\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc774\ub807\uac8c \ud558\uba74 <code>Anx_CWC<\/code>\uc758 \uacc4\uc218\ub294 <strong>\uac1c\uc778 \ud6a8\uacfc<\/strong>, <code>Mean_Anx_School<\/code>\uc758 \uacc4\uc218\ub294 <strong>\ub9e5\ub77d \ud6a8\uacfc<\/strong>\uac00 \ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">(3) R\uc744 \uc774\uc6a9\ud55c \uc2dc\uac01\ud654 (CGM vs CWC)<\/h3>\n\n\n\n<p>\uad50\uc7ac\uc758 [Figure 6.2]\uc640 [Figure 6.3]\uc744 \uc7ac\ud604\ud558\uc5ec \ub370\uc774\ud130 \uad6c\uc870\uac00 \uc5b4\ub5bb\uac8c \ubc14\ub00c\ub294\uc9c0 \ubcf4\uc5ec\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>R<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># CGM \uc2dc\uac01\ud654 (\ud559\uad50 \uac04 \ucc28\uc774 \ubcf4\uc874\ub428)\np1 &lt;- ggplot(data, aes(x = anx_cgm, y = math_score, color = as.factor(school_id))) +\n  geom_point(alpha = 0.5) +\n  theme_minimal() +\n  theme(legend.position = \"none\") +\n  labs(title = \"CGM: \ud559\uad50 \uac04 \ud3c9\uade0 \ucc28\uc774\uac00 \ubcf4\uc874\ub428\", x = \"\uc218\ud559 \ubd88\uc548 (CGM)\", y = \"\uc218\ud559 \uc810\uc218\")\n\n# CWC \uc2dc\uac01\ud654 (\ubaa8\ub4e0 \ud559\uad50 \ud3c9\uade0\uc774 0\uc73c\ub85c \uc815\ub82c\ub428)\np2 &lt;- ggplot(data, aes(x = anx_cwc, y = math_score, color = as.factor(school_id))) +\n  geom_point(alpha = 0.5) +\n  theme_minimal() +\n  theme(legend.position = \"none\") +\n  labs(title = \"CWC: \ud559\uad50 \uac04 \ucc28\uc774 \uc81c\uac70 (\uc21c\uc218 \uac1c\uc778\ucc28)\", x = \"\uc218\ud559 \ubd88\uc548 (CWC)\", y = \"\uc218\ud559 \uc810\uc218\")\n\n# \uadf8\ub798\ud504 \ucd9c\ub825\ngridExtra::grid.arrange(p1, p2, ncol = 2)\n<\/code><\/pre>\n\n\n\n<p>\uc774 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uba74, CGM \uadf8\ub798\ud504\uc5d0\uc11c\ub294 \ud559\uad50\ubcc4\ub85c \uc810\uc218 \ubb49\uce58\uac00 \uc88c\uc6b0\ub85c \ud37c\uc838 \uc788\ub294 \ubc18\uba74(\ud559\uad50 \uac04 \ubd88\uc548 \ucc28\uc774 \uc874\uc7ac), CWC \uadf8\ub798\ud504\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \ud559\uad50\uc758 \uc810\uc218 \ubb49\uce58\uac00 \uac00\uc6b4\ub370(0)\ub97c \uc911\uc2ec\uc73c\ub85c \uc218\uc9c1 \uc815\ub82c\ub41c \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"796\" height=\"789\" src=\"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1.png\" alt=\"\" class=\"wp-image-736\" srcset=\"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1.png 796w, http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1-300x297.png 300w, http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1-150x150.png 150w, http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1-768x761.png 768w, http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1-624x619.png 624w\" sizes=\"auto, (max-width: 796px) 100vw, 796px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. \uacb0\ub860: \ubb34\uc5c7\uc744 \uae30\uc5b5\ud574\uc57c \ud560\uae4c\uc694?<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\uc911\uc2ec\ud654\ub294 \ub2e8\uc21c\ud55c \uc635\uc158\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/strong> \uc5f0\uad6c \uacb0\uacfc\uc758 \uc758\ubbf8\ub97c \ubc14\uafc9\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>CWC\ub294 \ud559\uad50 \ud6a8\uacfc\ub97c \uc81c\uac70\ud569\ub2c8\ub2e4.<\/strong> \uc624\uc9c1 &#8216;\ub0b4 \ud559\uad50 \uc548\uc5d0\uc11c\uc758 \uc0c1\ub300\uc801 \uc704\uce58&#8217;\ub9cc \ubd05\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>CGM\uc740 \ud559\uad50 \ud6a8\uacfc\uc640 \uac1c\uc778 \ud6a8\uacfc\ub97c \uc11e\uc2b5\ub2c8\ub2e4.<\/strong> &#8216;\uc804\uccb4\uc5d0\uc11c\uc758 \uc808\ub300\uc801 \uc704\uce58&#8217;\ub97c \ubd05\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc5f0\uad6c \uc9c8\ubb38\uc5d0 \uadc0\ub97c \uae30\uc6b8\uc774\uc138\uc694.<\/strong> &#8220;\uc808\ub300\uc801\uc778 \uc810\uc218&#8221;\uac00 \uc911\uc694\ud55c\uc9c0(CGM), &#8220;\ub0a8\ub4e4\uacfc\uc758 \ube44\uad50&#8221;\uac00 \uc911\uc694\ud55c\uc9c0(CWC) \ud310\ub2e8\ud558\uc2ed\uc2dc\uc624.<\/li>\n<\/ol>\n\n\n\n<p>\uc5ec\ub7ec\ubd84\uc758 \uc5f0\uad6c\uac00 \ub2e8\uc21c\ud55c \ud1b5\uacc4 \ub3cc\ub9ac\uae30\uac00 \uc544\ub2c8\ub77c, \ub370\uc774\ud130 \uc18d\uc5d0 \uc228\uaca8\uc9c4 \uad50\uc721\uc801 \ub9e5\ub77d\uc744 \uc815\ud655\ud788 \uc9da\uc5b4\ub0b4\ub294 \ud1b5\ucc30\uc774 \ub418\uae30\ub97c \ubc14\ub78d\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\">\ucc38\uace0\ubb38\ud5cc<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enders, C. K. (2013). Centering predictors and contextual effects. In M. A. Scott, J. S. Simonoff, &amp; B. D. Marx (Eds.), <em>The SAGE handbook of multilevel modeling<\/em> (pp. 89-108). SAGE Publications.<\/li>\n\n\n\n<li>Kreft, I. G. G., de Leeuw, J., &amp; Aiken, L. S. (1995). The effect of different forms of centering in hierarchical linear models. <em>Multivariate Behavioral Research, 30<\/em>(1), 1\u201321.<\/li>\n\n\n\n<li>Marsh, H. W., &amp; Hau, K.-T. (2003). Big-Fish-Little-Pond effect on academic self-concept: A cross-cultural (26-country) test of the negative effects of academically selective schools. <em>American Psychologist, 58<\/em>(5), 364\u2013376.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\uc548\ub155\ud558\uc138\uc694! \uc624\ub298\uc740 \ub2e4\uce35\ubaa8\ud615(Multilevel Modeling) \ubd84\uc11d\uc758 \ud575\uc2ec\uc774\uba74\uc11c\ub3c4 \ub9ce\uc740 \uc5f0\uad6c\uc790\uac00 \uac00\uc7a5 \ud5f7\uac08\ub824 \ud558\ub294 \uc8fc\uc81c, \ubc14\ub85c &#8220;\uc608\uce21\ubcc0\uc218\uc758 \uc911\uc2ec\ud654(Centering Predictors)&#8221;\uc640 &#8220;\ub9e5\ub77d \ud6a8\uacfc(Contextual Effects)&#8221;\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 \ucd08\ub4f1\ud559\uc0dd\ub3c4 \uc774\ud574\ud560 \uc218 \uc788\ub294 \uc9c1\uad00\uc801\uc778 \uc124\uba85\uacfc \ub300\ud559\uc6d0 \uc218\uc900\uc758 \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 <a class=\"read-more\" href=\"http:\/\/waurimal.kr\/?p=734\">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":[414,145,199,400,413],"class_list":["post-734","post","type-post","status-publish","format-standard","hentry","category-multilevel","tag-centering","tag-jamovi","tag-r","tag-400","tag-413"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc - 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=734\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc - WaurimaL\" \/>\n<meta property=\"og:description\" content=\"\uc548\ub155\ud558\uc138\uc694! \uc624\ub298\uc740 \ub2e4\uce35\ubaa8\ud615(Multilevel Modeling) \ubd84\uc11d\uc758 \ud575\uc2ec\uc774\uba74\uc11c\ub3c4 \ub9ce\uc740 \uc5f0\uad6c\uc790\uac00 \uac00\uc7a5 \ud5f7\uac08\ub824 \ud558\ub294 \uc8fc\uc81c, \ubc14\ub85c &#8220;\uc608\uce21\ubcc0\uc218\uc758 \uc911\uc2ec\ud654(Centering Predictors)&#8221;\uc640 &#8220;\ub9e5\ub77d \ud6a8\uacfc(Contextual Effects)&#8221;\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 \ucd08\ub4f1\ud559\uc0dd\ub3c4 \uc774\ud574\ud560 \uc218 \uc788\ub294 \uc9c1\uad00\uc801\uc778 \uc124\uba85\uacfc \ub300\ud559\uc6d0 \uc218\uc900\uc758 \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 Read more\" \/>\n<meta property=\"og:url\" content=\"http:\/\/waurimal.kr\/?p=734\" \/>\n<meta property=\"og:site_name\" content=\"WaurimaL\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-19T04:43:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-19T04:43:31+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1.png\" \/>\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=\"7\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734#article\",\"isPartOf\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/waurimal.kr\\\/#\\\/schema\\\/person\\\/e761145380f742e758f3c58f1607b704\"},\"headline\":\"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc\",\"datePublished\":\"2026-01-19T04:43:30+00:00\",\"dateModified\":\"2026-01-19T04:43:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734\"},\"wordCount\":411,\"image\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/waurimal.kr\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/FIG06-1.png\",\"keywords\":[\"centering\",\"jamovi\",\"r\",\"\ub2e4\uce35\ubd84\uc11d\",\"\uc911\uc2ec\ud654\"],\"articleSection\":[\"\ub2e4\uce35\ubd84\uc11d\"],\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734\",\"url\":\"http:\\\/\\\/waurimal.kr\\\/?p=734\",\"name\":\"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc - WaurimaL\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/waurimal.kr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734#primaryimage\"},\"image\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/waurimal.kr\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/FIG06-1.png\",\"datePublished\":\"2026-01-19T04:43:30+00:00\",\"dateModified\":\"2026-01-19T04:43:31+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/waurimal.kr\\\/#\\\/schema\\\/person\\\/e761145380f742e758f3c58f1607b704\"},\"breadcrumb\":{\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\\\/\\\/waurimal.kr\\\/?p=734\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734#primaryimage\",\"url\":\"http:\\\/\\\/waurimal.kr\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/FIG06-1.png\",\"contentUrl\":\"http:\\\/\\\/waurimal.kr\\\/wp-content\\\/uploads\\\/2026\\\/01\\\/FIG06-1.png\",\"width\":796,\"height\":789},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\\\/\\\/waurimal.kr\\\/?p=734#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/waurimal.kr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc\"}]},{\"@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":"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc - 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=734","og_locale":"ko_KR","og_type":"article","og_title":"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc - WaurimaL","og_description":"\uc548\ub155\ud558\uc138\uc694! \uc624\ub298\uc740 \ub2e4\uce35\ubaa8\ud615(Multilevel Modeling) \ubd84\uc11d\uc758 \ud575\uc2ec\uc774\uba74\uc11c\ub3c4 \ub9ce\uc740 \uc5f0\uad6c\uc790\uac00 \uac00\uc7a5 \ud5f7\uac08\ub824 \ud558\ub294 \uc8fc\uc81c, \ubc14\ub85c &#8220;\uc608\uce21\ubcc0\uc218\uc758 \uc911\uc2ec\ud654(Centering Predictors)&#8221;\uc640 &#8220;\ub9e5\ub77d \ud6a8\uacfc(Contextual Effects)&#8221;\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 \ucd08\ub4f1\ud559\uc0dd\ub3c4 \uc774\ud574\ud560 \uc218 \uc788\ub294 \uc9c1\uad00\uc801\uc778 \uc124\uba85\uacfc \ub300\ud559\uc6d0 \uc218\uc900\uc758 \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 Read more","og_url":"http:\/\/waurimal.kr\/?p=734","og_site_name":"WaurimaL","article_published_time":"2026-01-19T04:43:30+00:00","article_modified_time":"2026-01-19T04:43:31+00:00","og_image":[{"url":"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1.png","type":"","width":"","height":""}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\uae00\uc4f4\uc774":"admin","\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"7\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"http:\/\/waurimal.kr\/?p=734#article","isPartOf":{"@id":"http:\/\/waurimal.kr\/?p=734"},"author":{"name":"admin","@id":"https:\/\/waurimal.kr\/#\/schema\/person\/e761145380f742e758f3c58f1607b704"},"headline":"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc","datePublished":"2026-01-19T04:43:30+00:00","dateModified":"2026-01-19T04:43:31+00:00","mainEntityOfPage":{"@id":"http:\/\/waurimal.kr\/?p=734"},"wordCount":411,"image":{"@id":"http:\/\/waurimal.kr\/?p=734#primaryimage"},"thumbnailUrl":"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1.png","keywords":["centering","jamovi","r","\ub2e4\uce35\ubd84\uc11d","\uc911\uc2ec\ud654"],"articleSection":["\ub2e4\uce35\ubd84\uc11d"],"inLanguage":"ko-KR"},{"@type":"WebPage","@id":"http:\/\/waurimal.kr\/?p=734","url":"http:\/\/waurimal.kr\/?p=734","name":"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc - WaurimaL","isPartOf":{"@id":"https:\/\/waurimal.kr\/#website"},"primaryImageOfPage":{"@id":"http:\/\/waurimal.kr\/?p=734#primaryimage"},"image":{"@id":"http:\/\/waurimal.kr\/?p=734#primaryimage"},"thumbnailUrl":"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1.png","datePublished":"2026-01-19T04:43:30+00:00","dateModified":"2026-01-19T04:43:31+00:00","author":{"@id":"https:\/\/waurimal.kr\/#\/schema\/person\/e761145380f742e758f3c58f1607b704"},"breadcrumb":{"@id":"http:\/\/waurimal.kr\/?p=734#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["http:\/\/waurimal.kr\/?p=734"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"http:\/\/waurimal.kr\/?p=734#primaryimage","url":"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1.png","contentUrl":"http:\/\/waurimal.kr\/wp-content\/uploads\/2026\/01\/FIG06-1.png","width":796,"height":789},{"@type":"BreadcrumbList","@id":"http:\/\/waurimal.kr\/?p=734#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/waurimal.kr\/"},{"@type":"ListItem","position":2,"name":"Chap06. \uc608\uce21 \ubcc0\uc218 \uc911\uc2ec\ud654\uc640 \ub9e5\ub77d \ud6a8\uacfc"}]},{"@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\/734","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=734"}],"version-history":[{"count":1,"href":"http:\/\/waurimal.kr\/index.php?rest_route=\/wp\/v2\/posts\/734\/revisions"}],"predecessor-version":[{"id":737,"href":"http:\/\/waurimal.kr\/index.php?rest_route=\/wp\/v2\/posts\/734\/revisions\/737"}],"wp:attachment":[{"href":"http:\/\/waurimal.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/waurimal.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=734"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/waurimal.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}