Mplus model60 模型讲解

来自图书《MPlus中介调节模型》

Mplus中介、调节和调节中介效应模型构建教程

  • 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 + b2W + b3MW + c'X
M = a0 + a1X + a2W + a3Z + a4XW + a5XZ

数学公式2

Y = b0 + b1M + b2W + b3MW + c'X
M = a0 + a1X + a2W + a3Z + a4XW + a5XZ
Y = b0 + b1(a0 + a1X + a2W + a3Z + a4XW + a5XZ) + b2W + b3(a0 + a1X + a2W + a3Z + a4XW + a5XZ)W + c'X

数学公式3

Y = b0 + b1M + b2W + b3MW + c'X
M = a0 + a1X + a2W + a3Z + a4XW + a5XZ
Y = b0 + b1(a0 + a1X + a2W + a3Z + a4XW + a5XZ) + b2W + b3(a0 + a1X + a2W + a3Z + a4XW + a5XZ)W + c'X
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1Z + a4b1XW + a5b1XZ + b2W + a0b3W + a1b3XW + a2b3WW + a3b3ZW + a4b3XWW + a5b3XZW + c'X

数学公式4

Y = b0 + b1M + b2W + b3MW + c'X
M = a0 + a1X + a2W + a3Z + a4XW + a5XZ
Y = b0 + b1(a0 + a1X + a2W + a3Z + a4XW + a5XZ) + b2W + b3(a0 + a1X + a2W + a3Z + a4XW + a5XZ)W + c'X
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1Z + a4b1XW + a5b1XZ + b2W + a0b3W + a1b3XW + a2b3WW + a3b3ZW + a4b3XWW + a5b3XZW + c'X
Y = (b0 + a0b1 + a2b1W + a3b1Z + b2W + a0b3W + a2b3WW + a3b3ZW) + (a1b1 + a4b1W + a5b1Z + a1b3W + a4b3WW + a5b3ZW + c')X

数学公式5

Y = b0 + b1M + b2W + b3MW + c'X
M = a0 + a1X + a2W + a3Z + a4XW + a5XZ
Y = b0 + b1(a0 + a1X + a2W + a3Z + a4XW + a5XZ) + b2W + b3(a0 + a1X + a2W + a3Z + a4XW + a5XZ)W + c'X
Y = b0 + a0b1 + a1b1X + a2b1W + a3b1Z + a4b1XW + a5b1XZ + b2W + a0b3W + a1b3XW + a2b3WW + a3b3ZW + a4b3XWW + a5b3XZW + c'X
Y = (b0 + a0b1 + a2b1W + a3b1Z + b2W + a0b3W + a2b3WW + a3b3ZW) + (a1b1 + a4b1W + a5b1Z + a1b3W + a4b3WW + a5b3ZW + c')X
X 对 Y 的间接效应 (条件于 W, Z):(a1 + a4W + a5Z)(b1 + b3W)
X 对 Y 的直接效应:c'

代码解读1

USEVARIABLES = X M W Z Y XW XZ MW;

代码解读2

USEVARIABLES = X M W Z Y XW XZ MW;
DEFINE:
 MW = M*W;
 XW = X*W;
 XZ = X*Z;

代码解读3

USEVARIABLES = X M W Z Y XW XZ MW;
DEFINE:
 MW = M*W;
 XW = X*W;
 XZ = X*Z;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;

代码解读4

USEVARIABLES = X M W Z Y XW XZ MW;
DEFINE:
 MW = M*W;
 XW = X*W;
 XZ = X*Z;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON W (b2);
 Y ON MW (b3);
 Y ON X (cdash);
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON Z (a3);
 M ON XW (a4);
 M ON XZ (a5);

代码解读5

USEVARIABLES = X M W Z Y XW XZ MW;
DEFINE:
 MW = M*W;
 XW = X*W;
 XZ = X*Z;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON W (b2);
 Y ON MW (b3);
 Y ON X (cdash);
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON Z (a3);
 M ON XW (a4);
 M ON XZ (a5);
MODEL CONSTRAINT:
 NEW(LOW_W MED_W HIGH_W LOW_Z MED_Z HIGH_Z ...);
 LOW_W = #LOWW; ... HIGH_Z = #HIGHZ;
 ILOW_LOZ = a1*b1 + a4*b1*LOW_W + a5*b1*LOW_Z + a1*b3*LOW_W + a4*b3*LOW_W*LOW_W + a5*b3*LOW_Z*LOW_W; ...

代码解读6

USEVARIABLES = X M W Z Y XW XZ MW;
DEFINE:
 MW = M*W;
 XW = X*W;
 XZ = X*Z;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON W (b2);
 Y ON MW (b3);
 Y ON X (cdash);
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON Z (a3);
 M ON XW (a4);
 M ON XZ (a5);
MODEL CONSTRAINT:
 NEW(LOW_W MED_W HIGH_W LOW_Z MED_Z HIGH_Z ...);
 LOW_W = #LOWW; ... HIGH_Z = #HIGHZ;
 ILOW_LOZ = a1*b1 + a4*b1*LOW_W + a5*b1*LOW_Z + a1*b3*LOW_W + a4*b3*LOW_W*LOW_W + a5*b3*LOW_Z*LOW_W; ...
TLOW_LOZ = ILOW_LOZ + cdash; ...

代码解读7

USEVARIABLES = X M W Z Y XW XZ MW;
DEFINE:
 MW = M*W;
 XW = X*W;
 XZ = X*Z;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON W (b2);
 Y ON MW (b3);
 Y ON X (cdash);
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON Z (a3);
 M ON XW (a4);
 M ON XZ (a5);
MODEL CONSTRAINT:
 NEW(LOW_W MED_W HIGH_W LOW_Z MED_Z HIGH_Z ...);
 LOW_W = #LOWW; ... HIGH_Z = #HIGHZ;
 ILOW_LOZ = a1*b1 + a4*b1*LOW_W + a5*b1*LOW_Z + a1*b3*LOW_W + a4*b3*LOW_W*LOW_W + a5*b3*LOW_Z*LOW_W; ...
TLOW_LOZ = ILOW_LOZ + cdash; ...
PLOT(PLOW_LOZ PMEW_LOZ PHIW_LOZ ...);
 LOOP(XVAL,1,5,0.1);
 PLOW_LOZ = ILOW_LOZ*XVAL; ...

代码解读8

USEVARIABLES = X M W Z Y XW XZ MW;
DEFINE:
 MW = M*W;
 XW = X*W;
 XZ = X*Z;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON W (b2);
 Y ON MW (b3);
 Y ON X (cdash);
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON Z (a3);
 M ON XW (a4);
 M ON XZ (a5);
MODEL CONSTRAINT:
 NEW(LOW_W MED_W HIGH_W LOW_Z MED_Z HIGH_Z ...);
 LOW_W = #LOWW; ... HIGH_Z = #HIGHZ;
 ILOW_LOZ = a1*b1 + a4*b1*LOW_W + a5*b1*LOW_Z + a1*b3*LOW_W + a4*b3*LOW_W*LOW_W + a5*b3*LOW_Z*LOW_W; ...
TLOW_LOZ = ILOW_LOZ + cdash; ...
PLOT(PLOW_LOZ PMEW_LOZ PHIW_LOZ ...);
 LOOP(XVAL,1,5,0.1);
 PLOW_LOZ = ILOW_LOZ*XVAL; ...
PLOT: TYPE = plot2;

代码解读9

USEVARIABLES = X M W Z Y XW XZ MW;
DEFINE:
 MW = M*W;
 XW = X*W;
 XZ = X*Z;
ANALYSIS:
 TYPE = GENERAL;
 ESTIMATOR = ML;
 BOOTSTRAP = 10000;
MODEL:
 [Y] (b0);
 Y ON M (b1);
 Y ON W (b2);
 Y ON MW (b3);
 Y ON X (cdash);
 [M] (a0);
 M ON X (a1);
 M ON W (a2);
 M ON Z (a3);
 M ON XW (a4);
 M ON XZ (a5);
MODEL CONSTRAINT:
 NEW(LOW_W MED_W HIGH_W LOW_Z MED_Z HIGH_Z ...);
 LOW_W = #LOWW; ... HIGH_Z = #HIGHZ;
 ILOW_LOZ = a1*b1 + a4*b1*LOW_W + a5*b1*LOW_Z + a1*b3*LOW_W + a4*b3*LOW_W*LOW_W + a5*b3*LOW_Z*LOW_W; ...
TLOW_LOZ = ILOW_LOZ + cdash; ...
PLOT(PLOW_LOZ PMEW_LOZ PHIW_LOZ ...);
 LOOP(XVAL,1,5,0.1);
 PLOW_LOZ = ILOW_LOZ*XVAL; ...
PLOT: TYPE = plot2;
OUTPUT: STAND CINT(bcbootstrap);

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