Table 3.

Confirmatory Factor Analysis of the Anxiety and Preoccupation About Sleep Questionnaire (APSQ) n = 523

Factor	Indicator	Estimate	SE	Z	p
F1	APSQ1	0.83	0.05	17.95	<0.001
	APSQ2	0.8	0.04	18.85	<0.001
	APSQ3	0.82	0.04	20.13	<0.001
	APSQ4	0.67	0.05	14.8	<0.001
	APSQ5	0.81	0.04	19.58	<0.001
	APSQ7	0.83	0.04	19.14	<0.001
F2	APSQ6	0.82	0.05	17.36	<0.001
	APSQ8	0.84	0.05	18.46	<0.001
	APSQ9	0.98	0.05	21.68	<0.001
	APSQ10	0.93	0.05	20.45	<0.001

Notes: Estimate represents factor loading. APSQ F1 = APSQ Factor 1 (Worries about the consequences of poor sleep). APSQ F2 = APSQ Factor 2 (Worries about the uncontrollability of sleep).