Mplus model36 模型讲解

来自图书《MPlus中介调节模型》

Mplus中构建复杂调节中介模型的代码示例:模型36详解

  • 理论模型
  • 数学模型
  • 数学推导
  • 代码解读

理论模型

数学模型

数学公式1

Y = b0 + b1M + b2MV + b3MQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ

数学公式2

Y = b0 + b1M + b2MV + b3MQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
M = a0 + a1X + a2W + a3XW

数学公式3

Y = b0 + b1M + b2MV + b3MQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2(a0 + a1X + a2W + a3XW)V + b3(a0 + a1X + a2W + a3XW)Q + c1'X + c2'V + c3'Q + c4'XV + c5'XQ

数学公式4

Y = b0 + b1M + b2MV + b3MQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2(a0 + a1X + a2W + a3XW)V + b3(a0 + a1X + a2W + a3XW)Q + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1XW + a0b2V + a1b2XV + a2b2WV + a3b2XWV + a0b3Q + a1b3XQ + a2b3WQ + a3b3XWQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ

数学公式5

Y = b0 + b1M + b2MV + b3MQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2(a0 + a1X + a2W + a3XW)V + b3(a0 + a1X + a2W + a3XW)Q + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1XW + a0b2V + a1b2XV + a2b2WV + a3b2XWV + a0b3Q + a1b3XQ + a2b3WQ + a3b3XWQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
Y = (b0 + a0b1 + a2b1W + a0b2V + a2b2WV + a0b3Q + a2b3WQ + c2'V + c3'Q) + (a1b1 + a3b1W + a1b2V + a3b2WV + a1b3Q + a3b3WQ + c1' + c4'V + c5'Q)X

数学公式6

Y = b0 + b1M + b2MV + b3MQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2(a0 + a1X + a2W + a3XW)V + b3(a0 + a1X + a2W + a3XW)Q + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1XW + a0b2V + a1b2XV + a2b2WV + a3b2XWV + a0b3Q + a1b3XQ + a2b3WQ + a3b3XWQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
Y = (b0 + a0b1 + a2b1W + a0b2V + a2b2WV + a0b3Q + a2b3WQ + c2'V + c3'Q) + (a1b1 + a3b1W + a1b2V + a3b2WV + a1b3Q + a3b3WQ + c1' + c4'V + c5'Q)X
X 对 Y 的一个间接效应(取决于 W, V, Q):
a1b1 + a3b1W + a1b2V + a3b2WV + a1b3Q + a3b3WQ = (a1 + a3W)(b1 + b2V + b3Q)

数学公式7

Y = b0 + b1M + b2MV + b3MQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2(a0 + a1X + a2W + a3XW)V + b3(a0 + a1X + a2W + a3XW)Q + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1XW + a0b2V + a1b2XV + a2b2WV + a3b2XWV + a0b3Q + a1b3XQ + a2b3WQ + a3b3XWQ + c1'X + c2'V + c3'Q + c4'XV + c5'XQ
Y = (b0 + a0b1 + a2b1W + a0b2V + a2b2WV + a0b3Q + a2b3WQ + c2'V + c3'Q) + (a1b1 + a3b1W + a1b2V + a3b2WV + a1b3Q + a3b3WQ + c1' + c4'V + c5'Q)X
X 对 Y 的一个间接效应(取决于 W, V, Q):
a1b1 + a3b1W + a1b2V + a3b2WV + a1b3Q + a3b3WQ = (a1 + a3W)(b1 + b2V + b3Q)
X 对 Y 的一个直接效应(取决于 V, Q):
c1' + c4'V + c5'Q

代码解读1

USEVARIABLES = X M W V Q Y XW XV XQ MV MQ;

代码解读2

USEVARIABLES = X M W V Q Y XW XV XQ MV MQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 XQ = X*Q;
 XV = X*V;

代码解读3

USEVARIABLES = X M W V Q Y XW XV XQ MV MQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 XQ = X*Q;
 XV = X*V;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;

代码解读4

USEVARIABLES = X M W V Q Y XW XV XQ MV MQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 XQ = X*Q;
 XV = X*V;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON MV (b2);
 Y ON MQ (b3);
 Y ON X (cdash1);
 Y ON V (cdash2);
 Y ON Q (cdash3);
 Y ON XV (cdash4);
 Y ON XQ (cdash5); 
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON XW (a3);

代码解读5

USEVARIABLES = X M W V Q Y XW XV XQ MV MQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 XQ = X*Q;
 XV = X*V;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON MV (b2);
 Y ON MQ (b3);
 Y ON X (cdash1);
 Y ON V (cdash2);
 Y ON Q (cdash3);
 Y ON XV (cdash4);
 Y ON XQ (cdash5); 
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON XW (a3);
MODEL CONSTRAINT:
 NEW(LOW_W MED_W HIGH_W LOW_V MED_V HIGH_V LOW_Q MED_Q HIGH_Q ...);
 LOW_W = #LOWW;
 MED_W = #MEDW;
 HIGH_W = #HIGHW;
 ...
 ILWLVLQ = a1*b1 + a3*b1*LOW_W + a1*b2*LOW_V + a3*b2*LOW_W*LOW_V + a1*b3*LOW_Q + a3*b3*LOW_W*LOW_Q; ...

代码解读6

USEVARIABLES = X M W V Q Y XW XV XQ MV MQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 XQ = X*Q;
 XV = X*V;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON MV (b2);
 Y ON MQ (b3);
 Y ON X (cdash1);
 Y ON V (cdash2);
 Y ON Q (cdash3);
 Y ON XV (cdash4);
 Y ON XQ (cdash5); 
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON XW (a3);
MODEL CONSTRAINT:
 NEW(LOW_W MED_W HIGH_W LOW_V MED_V HIGH_V LOW_Q MED_Q HIGH_Q ...);
 LOW_W = #LOWW;
 MED_W = #MEDW;
 HIGH_W = #HIGHW;
 ...
 ILWLVLQ = a1*b1 + a3*b1*LOW_W + a1*b2*LOW_V + a3*b2*LOW_W*LOW_V + a1*b3*LOW_Q + a3*b3*LOW_W*LOW_Q; ...
PLOT(PLWLVLQ PMWLVLQ PHWLVLQ ...);
 LOOP(XVAL,1,5,0.1);
 PLWLVLQ = ILWLVLQ*XVAL;
 PMWLVLQ = IMWLVLQ*XVAL;
 ...

代码解读7

USEVARIABLES = X M W V Q Y XW XV XQ MV MQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 XQ = X*Q;
 XV = X*V;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON MV (b2);
 Y ON MQ (b3);
 Y ON X (cdash1);
 Y ON V (cdash2);
 Y ON Q (cdash3);
 Y ON XV (cdash4);
 Y ON XQ (cdash5); 
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON XW (a3);
MODEL CONSTRAINT:
 NEW(LOW_W MED_W HIGH_W LOW_V MED_V HIGH_V LOW_Q MED_Q HIGH_Q ...);
 LOW_W = #LOWW;
 MED_W = #MEDW;
 HIGH_W = #HIGHW;
 ...
 ILWLVLQ = a1*b1 + a3*b1*LOW_W + a1*b2*LOW_V + a3*b2*LOW_W*LOW_V + a1*b3*LOW_Q + a3*b3*LOW_W*LOW_Q; ...
PLOT(PLWLVLQ PMWLVLQ PHWLVLQ ...);
 LOOP(XVAL,1,5,0.1);
 PLWLVLQ = ILWLVLQ*XVAL;
 PMWLVLQ = IMWLVLQ*XVAL;
 ...
PLOT: TYPE = plot2;
 OUTPUT: STAND CINT(bcbootstrap);

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