Table 5. Bivariate Correlations between Sleep and Functional Domains.

Correlations	Nightmares	Overtired	Sleep Less than Other Kids	Sleep More than Other Kids	Trouble Sleeping	Total Problematic Sleep Behav. Total Score
CBCL internalizing t-score score	0.330**	0.431**	0.263*	0.111	0.242*	0.467**
SB5 Nonverbal IQ	0.228*	0.038	0.143	0.057	0.125	0.208
SB5 Verbal IQ	0.188	0.028	0.058	0.205	0.063	0.168
WRAT-4 Word Reading Standard Score	0.071	-0.086	0.137	0.086	0.068	0.097
WRAT-4 Sentence
Comprehension Standard Score	0.193	0.200	0.222*	0.185	0.138	0.311**
WRAT-4 Spelling Standard Score	0.066	-0.005	0.093	0.145	0.034	0.102
WRAT-4 Math Computation Standard Score	0.154	-0.004	0.137	0.200	0.082	0.179
ADI-R Sum of Subscales	-0.050	0.130	-0.126	0.134	-0.106	-0.041
ADI-R Social Total	-.100	.094	-.160	.157	-.086	-.069
ADI-R Communication Verbal Total	.057	.067	-.040	.106	-.064	.019
ADI-R Communication Nonverbal Total ADI-R Restricted-	.c	.c	.c	.c	.c	.c
Stereotyped Behaviors Total	-.131	.339**	-.079	.188	-.122	.026
ADI-R Abnormality of Development Total	.034	-.133	-.085	-.232*	-.079	-.153
CPRS ADHD index t-score	0.179	0.212	0.064	0.147	0.117	0.225*
CPRS cognitive problems/inattention t-score	0.133	0.261*	0.097	0.180	0.121	0.247*
CPRS hyperactivity t-score	0.150	0.050	0.133	0.143	0.059	0.170
BRIEF - BRI T Score -Parent	0.174	0.319**	0.187	0.139	0.092	0.295**
BRIEF - MI T Score -Parent	0.244*	0.256*	0.079	0.064	0.082	0.235*
Sleep Intercorrelations
Nightmares	-
Overtired	0.071	-
Sleep Less than Other Kids	0.302**	0.155	-
Sleep More than Other Kids	0.002	0.362**	-0.138	-
Trouble Sleeping	0.146	0.215	0.732**	-0.065	-
Total Problematic Sleep Behav. Total Score	.0548**	0.554**	0.782**	0.277*	0.764**	-

Note. CBCL (Child Behavior Checklist); SB5 (Stanford-Binet Intelligence Scales - 5^th Edition); SS (Standard Score); IQ (Intellectual Quotient); WRAT-4 (Wide Range Achievement Test – 4^th Edition); CPRS (Connors Parent Rating Scale-Revised);

^*< .05;

^**< .01