Trait Hostility, Perceived Stress, and Sleep Quality in a Sample of Normal Sleepers

Table 3

Cognitive hostility and the PSQI mediated by PSS.

Step	IV	DV	𝐵	SE	𝛽	𝑅^2	Adj 𝑅^2	sr^2
1	CogHo	PSQI	.388	.105	.421	.177	.164	.177*
2	CogHo	PSS	.718	.239	.352	.124	.110	.124*
3	CogHo	PSQI	.227	.097	.246	.393	.374	.053*
	PSS	PSQI	.225	.047	.497	.393	.374	.216*
			Standardized indirect effect = .1613, 𝑃<.001
			95% CI = .072; .279

PSS: Perceived Stress Scale; PSQI: Pittsburg Sleep Quality Index, CogHo: cognitive hostility.
* 𝑃<.05.