. Author manuscript; available in PMC: 2013 Feb 25.

Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2011 Apr 5;50(5):499–507. doi: 10.1016/j.jaac.2011.02.003

TABLE 1.

Correlations Between Sleep Diary Variables and Child Behavior Checklist Sleep Items (Before and After Controlling for Age, Gender, and Diagnostic Status)

Sleep Diary Variables	Child Behavior Checklist Sleep Items
Sleep Diary Variables	Overtired	Sleeps Less	Sleeps More	Trouble Sleeping
Sleep latency	pr(114) = 0.19, p = .039	pr(111) = 0.16, p = .089	pr(112) = –0.06, p = .552	pr(113) = 0.25, p = .008
	[r(117) = 0.34, p < .001]	[r(114) = 0.30, p = .001]	[r(115) = 0.10, p = .295]	[r(116) = 0.37, p <.001]
Total time awake	pr(113) = –0.13, p = .162	pr(110) = –0.06, p = .554	pr(111) = –0.18, p = .052	pr(112) = 0.07, p = .495
	[r(116) = 0.06, p = .510]	[r(113) = 0.09, p = .337]	[r(114) = 0.02, p = .824]	[r(115) = 0.19, p = .042]
Sleep quality	pr(111) = –0.11, p = .243	pr(108) = –0.03, p = .729	pr(109) = –0.11, p = .240	pr(110) = –0.11, p = .268
	[r(114) = –0.29, p = 0.002]	[r(111) = –0.22, p = .02]	[r(112) = –0.27, p = .004]	[r(113) = –0.27, p = .003]
Ease of waking	pr(111) = –0.13, p = .167	pr(108) = .09, p = .327	pr(109) = –0.25, p = .009	pr(110) = –0.04, p = .699
	[r(114) = –0.30, p = .001]	[r(111) = –0.12, p = .227]	[r(112) = –0.37, p < .001]	[r(113) = –0.21, p = .024]

Note: Degrees of freedom are provided in brackets following zero-order correlation (r). Boldface type is used to highlight correlations which are significant (p < .05) or approaching significance (p < .10). Certain variables were transformed prior to analyses in order to reduce skevs. The discrepancy in numbers reported in the table is caused by missing data, p = probability value; pr = partial correlation (controlling for age; gender, and diagnostic status).