Mplus model4b 模型讲解

来自图书《MPlus中介调节模型》

使用Mplus分析包含两个平行中介变量的模型(模型4b)

  • 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 + b1M1 + b2M2 + c'X

数学公式2

Y = b0 + b1M1 + b2M2 + c'X
M1 = a01 + a1X
M2 = a02 + a2X

数学公式3

Y = b0 + b1M1 + b2M2 + c'X
M1 = a01 + a1X
M2 = a02 + a2X
Y = b0 + b1(a01 + a1X) + b2(a02 + a2X) + c'X

数学公式4

Y = b0 + b1M1 + b2M2 + c'X
M1 = a01 + a1X
M2 = a02 + a2X
Y = b0 + b1(a01 + a1X) + b2(a02 + a2X) + c'X
Y = b0 + a01b1 + a1b1X + a02b2 + a2b2X + c'X

数学公式5

Y = b0 + b1M1 + b2M2 + c'X
M1 = a01 + a1X
M2 = a02 + a2X
Y = b0 + b1(a01 + a1X) + b2(a02 + a2X) + c'X
Y = b0 + a01b1 + a1b1X + a02b2 + a2b2X + c'X
Y = (b0 + a01b1 + a02b2) + (a1b1 + a2b2 + c')X

数学公式6

Y = b0 + b1M1 + b2M2 + c'X
M1 = a01 + a1X
M2 = a02 + a2X
Y = b0 + b1(a01 + a1X) + b2(a02 + a2X) + c'X
Y = b0 + a01b1 + a1b1X + a02b2 + a2b2X + c'X
Y = (b0 + a01b1 + a02b2) + (a1b1 + a2b2 + c')X
间接效应:a1b1, a2b2
直接效应:c'

代码解读1

USEVARIABLES = X M1 M2 Y;

代码解读2

USEVARIABLES = X M1 M2 Y;
ANALYSIS:

代码解读3

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;

代码解读4

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;

代码解读5

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;

代码解读6

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:

代码解读7

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);

代码解读8

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);

代码解读9

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);

代码解读10

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);

代码解读11

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);

代码解读12

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);
MODEL CONSTRAINT:

代码解读13

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);
MODEL CONSTRAINT:
NEW(a1b1 a2b2 TOTALIND TOTAL);

代码解读14

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);
MODEL CONSTRAINT:
NEW(a1b1 a2b2 TOTALIND TOTAL);
a1b1 = a1*b1;

代码解读15

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);
MODEL CONSTRAINT:
NEW(a1b1 a2b2 TOTALIND TOTAL);
a1b1 = a1*b1;
a2b2 = a2*b2;

代码解读16

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);
MODEL CONSTRAINT:
NEW(a1b1 a2b2 TOTALIND TOTAL);
a1b1 = a1*b1;
a2b2 = a2*b2;
TOTALIND = a1*b1 + a2*b2;

代码解读17

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);
MODEL CONSTRAINT:
NEW(a1b1 a2b2 TOTALIND TOTAL);
a1b1 = a1*b1;
a2b2 = a2*b2;
TOTALIND = a1*b1 + a2*b2;
TOTAL = a1*b1 + a2*b2 + cdash;

代码解读18

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);
MODEL CONSTRAINT:
NEW(a1b1 a2b2 TOTALIND TOTAL);
a1b1 = a1*b1;
a2b2 = a2*b2;
TOTALIND = a1*b1 + a2*b2;
TOTAL = a1*b1 + a2*b2 + cdash;
OUTPUT:

代码解读19

USEVARIABLES = X M1 M2 Y;
ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = ML;
BOOTSTRAP = 10000;
MODEL:
Y ON M1 (b1);
Y ON M2 (b2);
Y ON X (cdash);
M1 ON X (a1);
M2 ON X (a2);
MODEL CONSTRAINT:
NEW(a1b1 a2b2 TOTALIND TOTAL);
a1b1 = a1*b1;
a2b2 = a2*b2;
TOTALIND = a1*b1 + a2*b2;
TOTAL = a1*b1 + a2*b2 + cdash;
OUTPUT:
STAND CINT(bcbootstrap);

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