Table 2.

Correlation Coefficients of the BDI-II Total Score with BDI-II Sub-factors by on Its Models

		Two-Factor Model			Three-Factor Model
	BDI-II Total	SM	CF	BDI-II Total	SM	PD	NA
BDI-II Total	1
SM	0.962*	1
	<0.001
CF	0.904*	0.760*	1
	<0.001	<0.0021
SM				0.836*	1
				<0.001
PD				0.914*	0.63*	1
				<0.001	<0.001
NA				0.92*	0.606*	0.831*	1
				<0.001	<0.001	<0.001

Note: *Correlation is statistically significant at the 0.01 level (2-tailed).

Abbreviations: PD, performance difficult factor; SM, somatic factor; NA, negative attitude factor; CF, cognitive factor; BDI-II, Beck depression inventory version II.