Assessing psychometric properties and measurement invariance of the Sleep Quality Questionnaire among healthcare students

Table 6 Multiple linear regression analysis predicting negative symptoms and self-rated health (N = 595)

Criterion variable	Predictors	B	SE	β	t	P	95% CI		VIF
Criterion variable	Predictors	B	SE	β	t	P	Lower	Upper	VIF
PHQ-4	R² = 0.209; Adjusted R² = 0.207; F = 78.325; P < 0.001
	SDS	0.147	0.032	0.170	4.546	< 0.001	0.084	0.211	1.044
	DSS	0.187	0.018	0.391	10.483	< 0.001	0.152	0.222	1.044
SRHQ	R² = 0.111; Adjusted R² = 0.108; F = 36.929; P < 0.001
	SDS	0.105	0.018	0.227	5.742	< 0.001	0.069	0.141	1.044
	DSS	0.051	0.010	0.201	5.082	< 0.001	0.031	0.071	1.044

SDS Sleep Difficulty Subscale, DSS Daytime Sleepiness Subscale, PHQ Patient Health Questionnaire, SRHQ Self-Rated Health Questionnaire, B unstandardized coefficients, SE standard error, β standardized coefficients, CI confidence interval, VIF variance inflation factor, R² coefficient of determination

ISSN: 2050-7283