Mplus model18 模型讲解

来自图书《MPlus中介调节模型》

Mplus复杂模型构建:中介、调节与调节中介效应分析

  • 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 + c'X

数学公式2

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c'X
M = a0 + a1X

数学公式3

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c'X
M = a0 + a1X
Y = b0 + b1(a0 + a1X) + b2V + b3Q + b4(a0 + a1X)V + b5(a0 + a1X)Q + b6VQ + b7(a0 + a1X)VQ + c'X

数学公式4

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c'X
M = a0 + a1X
Y = b0 + b1(a0 + a1X) + b2V + b3Q + b4(a0 + a1X)V + b5(a0 + a1X)Q + b6VQ + b7(a0 + a1X)VQ + c'X
Y = b0 + a0b1 + a1b1X + b2V + b3Q + a0b4V + a1b4XV + a0b5Q + a1b5XQ + b6VQ + a0b7VQ + a1b7XVQ + c'X

数学公式5

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c'X
M = a0 + a1X
Y = b0 + b1(a0 + a1X) + b2V + b3Q + b4(a0 + a1X)V + b5(a0 + a1X)Q + b6VQ + b7(a0 + a1X)VQ + c'X
Y = b0 + a0b1 + a1b1X + b2V + b3Q + a0b4V + a1b4XV + a0b5Q + a1b5XQ + b6VQ + a0b7VQ + a1b7XVQ + c'X
Y = (b0 + a0b1 + b2V + b3Q + a0b4V + a0b5Q + b6VQ + a0b7VQ) + (a1b1 + a1b4V + a1b5Q + a1b7VQ + c')X

数学公式6

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c'X
M = a0 + a1X
Y = b0 + b1(a0 + a1X) + b2V + b3Q + b4(a0 + a1X)V + b5(a0 + a1X)Q + b6VQ + b7(a0 + a1X)VQ + c'X
Y = b0 + a0b1 + a1b1X + b2V + b3Q + a0b4V + a1b4XV + a0b5Q + a1b5XQ + b6VQ + a0b7VQ + a1b7XVQ + c'X
Y = (b0 + a0b1 + b2V + b3Q + a0b4V + a0b5Q + b6VQ + a0b7VQ) + (a1b1 + a1b4V + a1b5Q + a1b7VQ + c')X
X对Y的间接效应(在V和Q的条件下): a1(b1 + b4V + b5Q + b7VQ)

数学公式7

Y = b0 + b1M + b2V + b3Q + b4MV + b5MQ + b6VQ + b7MVQ + c'X
M = a0 + a1X
Y = b0 + b1(a0 + a1X) + b2V + b3Q + b4(a0 + a1X)V + b5(a0 + a1X)Q + b6VQ + b7(a0 + a1X)VQ + c'X
Y = b0 + a0b1 + a1b1X + b2V + b3Q + a0b4V + a1b4XV + a0b5Q + a1b5XQ + b6VQ + a0b7VQ + a1b7XVQ + c'X
Y = (b0 + a0b1 + b2V + b3Q + a0b4V + a0b5Q + b6VQ + a0b7VQ) + (a1b1 + a1b4V + a1b5Q + a1b7VQ + c')X
X对Y的间接效应(在V和Q的条件下): a1(b1 + b4V + b5Q + b7VQ)
X对Y的直接效应: c'

代码解读1

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

代码解读2

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

代码解读3

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

代码解读4

USEVARIABLES = X M V Q Y MV MQ VQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 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 (cdash);
 [M] (a0);
 M ON X (a1);

代码解读5

USEVARIABLES = X M V Q Y MV MQ VQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 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 (cdash);
 [M] (a0);
 M ON X (a1);
MODEL CONSTRAINT:
 NEW(LOW_V MED_V HIGH_V LOW_Q MED_Q HIGH_Q ...);
 LOW_V = #LOWV; ... 
 ILOV_LOQ = a1*b1 + a1*b4*LOW_V + a1*b5*LOW_Q + a1*b7*LOW_V*LOW_Q; ...

代码解读6

USEVARIABLES = X M V Q Y MV MQ VQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 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 (cdash);
 [M] (a0);
 M ON X (a1);
MODEL CONSTRAINT:
 NEW(LOW_V MED_V HIGH_V LOW_Q MED_Q HIGH_Q ...);
 LOW_V = #LOWV; ... 
 ILOV_LOQ = a1*b1 + a1*b4*LOW_V + a1*b5*LOW_Q + a1*b7*LOW_V*LOW_Q; ...
PLOT(PLOV_LOQ PMEV_LOQ PHIV_LOQ ...);
 LOOP(XVAL,1,5,0.1);
 PLOV_LOQ = ILOV_LOQ*XVAL; ...

代码解读7

USEVARIABLES = X M V Q Y MV MQ VQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 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 (cdash);
 [M] (a0);
 M ON X (a1);
MODEL CONSTRAINT:
 NEW(LOW_V MED_V HIGH_V LOW_Q MED_Q HIGH_Q ...);
 LOW_V = #LOWV; ... 
 ILOV_LOQ = a1*b1 + a1*b4*LOW_V + a1*b5*LOW_Q + a1*b7*LOW_V*LOW_Q; ...
PLOT(PLOV_LOQ PMEV_LOQ PHIV_LOQ ...);
 LOOP(XVAL,1,5,0.1);
 PLOV_LOQ = ILOV_LOQ*XVAL; ...
PLOT: TYPE = plot2;

代码解读8

USEVARIABLES = X M V Q Y MV MQ VQ MVQ;
DEFINE:
 MQ = M*Q;
 MV = M*V;
 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 (cdash);
 [M] (a0);
 M ON X (a1);
MODEL CONSTRAINT:
 NEW(LOW_V MED_V HIGH_V LOW_Q MED_Q HIGH_Q ...);
 LOW_V = #LOWV; ... 
 ILOV_LOQ = a1*b1 + a1*b4*LOW_V + a1*b5*LOW_Q + a1*b7*LOW_V*LOW_Q; ...
PLOT(PLOV_LOQ PMEV_LOQ PHIV_LOQ ...);
 LOOP(XVAL,1,5,0.1);
 PLOV_LOQ = ILOV_LOQ*XVAL; ...
PLOT: TYPE = plot2;
OUTPUT:
 STAND CINT(bcbootstrap);

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