Table 5.

Intercorrelations of the Sleep Preoccupation Scale (SPS) and convergent validity of the with Athens Insomnia Scale (AIS), generalized anxiety disorders Scale (GAD-7), and anxiety and preoccupation about Sleep Questionnaire (APSQ)

	SPS Total	SPS CBC	SPS AC	AIS	GAD-7	APSQ
SPS Total	—	—	—	0.48	0.57	0.79
SPS CBC	0.94	—	—	0.41	0.49	0.68
SPS AC	0.86	0.62	—	0.48	0.55	0.77

Notes SPS CBC = Sleep Preoccupation Scale – Factror 1 Cognitive Behavioral Consequences. SPS AC = Sleep Preoccupation Scale – Factor 2 Affective Consequences. SPS Total = Total Sleep Preoccupation Scale Score. AIS = Athens Insomnia Scale. GAD-7 = Generalized Anxiety Disorders. APSQ = Anxiety and Preoccupation About Sleep Questionnaire. All correlations are significant at p < 0.001