综合

M1

M2

M3

M4

线性回归方程

WRSR = 0. 538 + 0. 131Probit

WRSR = 0. 513 + 0. 122Probit

WRSR = 0. 544 + 0. 132Probit

WRSR = 0. 542 + 0. 132Probit

WRSR = 0. 586 + 0. 144Probit

t值

5.322

4.662

5.423

5.444

6.245

显著性

显著

显著

显著

显著

显著