Skip to main content

Table 3 Bivariate correlations among sleep measures, CBCL T scores, and MSEL T scores

From: Sleep characteristics and problems of 2-year-olds with Williams syndrome: relations with language and behavior

  Sleep latency Nighttime sleep duration SRBD score Sleepiness score
CBCL Depressive Problems T .34* − .31* .63** .52**
CBCL Anxiety Problems T .04 − .27* .18 − .06
CBCL Autism Spectrum Problems T .04 − .08 .31* .15
CBCL Attention/Hyperactivity Problems T .01 − .19 .58** .50**
CBCL Oppositional Defiant Problems T − .15 .12 .35* .32*
CBCL Stress Problems T .05 − .08 .48** .37*
CBCL Sleep Problems T .34* − .30* .51** .46**
CBCL Internalizing Problems T .08 − .22 .45** .17
CBCL Externalizing Problems T .03 − .02 .55** .50**
CBCL Total Problems T .18 − .20 .67** .50**
MSEL Expressive Language T < − .01 .17 − .18 − .10
MSEL Receptive Language T − .06 .16 − .29* − .15
MSEL Visual Reception T .07 − .08 − .26 − .19
Sleep latency   − .41** .20 .05
Nighttime sleep duration    − .21 − .01
SRBD score     ---
Sleepiness score     
  1. N = 96 for all correlations except those including Sleepiness score, for which N = 70
  2. CBCL Child Behavior Checklist, MSEL Mullen Scales of Early Learning, SRBD Sleep-Related Breathing Disorders
  3. *p < .01, **p < .001