Mplus model42 模型讲解

来自图书《MPlus中介调节模型》

Mplus模型42:包含中介、调节和调节中介效应的模型

  • 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 + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c1'X + c2'W + c3'XW

数学公式2

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c1'X + c2'W + c3'XW
M = a0 + a1X + a2W + a3XW

数学公式3

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c1'X + c2'W + c3'XW
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2V + b3Q + b4(a0 + a1X + a2W + a3XW)V + b5(a0 + a1X + a2W + a3XW)Q + b6VQ + b7(a0 + a1X + a2W + a3XW)VQ + c1'X + c2'W + c3'XW

数学公式4

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c1'X + c2'W + c3'XW
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2V + b3Q + b4(a0 + a1X + a2W + a3XW)V + b5(a0 + a1X + a2W + a3XW)Q + b6VQ + b7(a0 + a1X + a2W + a3XW)VQ + c1'X + c2'W + c3'XW
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1XW + b2V + b3Q + a0b4V + a1b4XV + a2b4WV + a3b4XWV + a0b5Q + a1b5XQ + a2b5WQ + a3b5XWQ + b6VQ + a0b7VQ + a1b7XVQ + a2b7WVQ + a3b7XWVQ + c1'X + c2'W + c3'XW

数学公式5

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c1'X + c2'W + c3'XW
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2V + b3Q + b4(a0 + a1X + a2W + a3XW)V + b5(a0 + a1X + a2W + a3XW)Q + b6VQ + b7(a0 + a1X + a2W + a3XW)VQ + c1'X + c2'W + c3'XW
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1XW + b2V + b3Q + a0b4V + a1b4XV + a2b4WV + a3b4XWV + a0b5Q + a1b5XQ + a2b5WQ + a3b5XWQ + b6VQ + a0b7VQ + a1b7XVQ + a2b7WVQ + a3b7XWVQ + c1'X + c2'W + c3'XW
Y = (b0 + a0b1 + a2b1W + b2V + b3Q + a0b4V + a2b4WV + a0b5Q + a2b5WQ + b6VQ + a0b7VQ + a2b7WVQ + c2'W) + (a1b1 + a3b1W + a1b4V + a3b4WV + a1b5Q + a3b5WQ + a1b7VQ + a3b7WVQ + c1' + c3'W)X

数学公式6

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c1'X + c2'W + c3'XW
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2V + b3Q + b4(a0 + a1X + a2W + a3XW)V + b5(a0 + a1X + a2W + a3XW)Q + b6VQ + b7(a0 + a1X + a2W + a3XW)VQ + c1'X + c2'W + c3'XW
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1XW + b2V + b3Q + a0b4V + a1b4XV + a2b4WV + a3b4XWV + a0b5Q + a1b5XQ + a2b5WQ + a3b5XWQ + b6VQ + a0b7VQ + a1b7XVQ + a2b7WVQ + a3b7XWVQ + c1'X + c2'W + c3'XW
Y = (b0 + a0b1 + a2b1W + b2V + b3Q + a0b4V + a2b4WV + a0b5Q + a2b5WQ + b6VQ + a0b7VQ + a2b7WVQ + c2'W) + (a1b1 + a3b1W + a1b4V + a3b4WV + a1b5Q + a3b5WQ + a1b7VQ + a3b7WVQ + c1' + c3'W)X
X对Y的间接效应(在W, V, Q条件下):
a1b1 + a3b1W + a1b4V + a3b4WV + a1b5Q + a3b5WQ + a1b7VQ + a3b7WVQ = (a1 + a3W)(b1 + b4V + b5Q + b7VQ)

数学公式7

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c1'X + c2'W + c3'XW
M = a0 + a1X + a2W + a3XW
Y = b0 + b1(a0 + a1X + a2W + a3XW) + b2V + b3Q + b4(a0 + a1X + a2W + a3XW)V + b5(a0 + a1X + a2W + a3XW)Q + b6VQ + b7(a0 + a1X + a2W + a3XW)VQ + c1'X + c2'W + c3'XW
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1XW + b2V + b3Q + a0b4V + a1b4XV + a2b4WV + a3b4XWV + a0b5Q + a1b5XQ + a2b5WQ + a3b5XWQ + b6VQ + a0b7VQ + a1b7XVQ + a2b7WVQ + a3b7XWVQ + c1'X + c2'W + c3'XW
Y = (b0 + a0b1 + a2b1W + b2V + b3Q + a0b4V + a2b4WV + a0b5Q + a2b5WQ + b6VQ + a0b7VQ + a2b7WVQ + c2'W) + (a1b1 + a3b1W + a1b4V + a3b4WV + a1b5Q + a3b5WQ + a1b7VQ + a3b7WVQ + c1' + c3'W)X
X对Y的间接效应(在W, V, Q条件下):
a1b1 + a3b1W + a1b4V + a3b4WV + a1b5Q + a3b5WQ + a1b7VQ + a3b7WVQ = (a1 + a3W)(b1 + b4V + b5Q + b7VQ)
X对Y的直接效应(在W条件下):
c1' + c3'W

代码解读1

USEVARIABLES = X M W V Q Y XW VQ MV MQ MVQ;

代码解读2

USEVARIABLES = X M W V Q Y XW VQ MV MQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 VQ = V*Q;
 MVQ = M*V*Q;

代码解读3

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

代码解读4

USEVARIABLES = X M W V Q Y XW VQ MV MQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 VQ = V*Q;
 MVQ = M*V*Q;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON V (b2);
 Y ON Q (b3);
 Y ON MV (b4);
 Y ON MQ (b5);
 Y ON VQ (b6);
 Y ON MVQ (b7);
 Y ON X (cdash1);
 Y ON W (cdash2);
 Y ON XW (cdash3);
 [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 VQ MV MQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 VQ = V*Q;
 MVQ = M*V*Q;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON V (b2);
 Y ON Q (b3);
 Y ON MV (b4);
 Y ON MQ (b5);
 Y ON VQ (b6);
 Y ON MVQ (b7);
 Y ON X (cdash1);
 Y ON W (cdash2);
 Y ON XW (cdash3);
 [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;
 ...
 ILWLVLQ = a1*b1 + a3*b1*LOW_W + ...;

代码解读6

USEVARIABLES = X M W V Q Y XW VQ MV MQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 VQ = V*Q;
 MVQ = M*V*Q;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON V (b2);
 Y ON Q (b3);
 Y ON MV (b4);
 Y ON MQ (b5);
 Y ON VQ (b6);
 Y ON MVQ (b7);
 Y ON X (cdash1);
 Y ON W (cdash2);
 Y ON XW (cdash3);
 [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;
 ...
 ILWLVLQ = a1*b1 + a3*b1*LOW_W + ...;
PLOT(...);
 LOOP(XVAL,1,5,0.1);
 PLWLVLQ = ILWLVLQ*XVAL;
 ...

代码解读7

USEVARIABLES = X M W V Q Y XW VQ MV MQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 XW = X*W;
 VQ = V*Q;
 MVQ = M*V*Q;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON V (b2);
 Y ON Q (b3);
 Y ON MV (b4);
 Y ON MQ (b5);
 Y ON VQ (b6);
 Y ON MVQ (b7);
 Y ON X (cdash1);
 Y ON W (cdash2);
 Y ON XW (cdash3);
 [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;
 ...
 ILWLVLQ = a1*b1 + a3*b1*LOW_W + ...;
PLOT(...);
 LOOP(XVAL,1,5,0.1);
 PLWLVLQ = ILWLVLQ*XVAL;
 ...
OUTPUT:
 STAND CINT(bcbootstrap);

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