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Table 1 Means, standard deviations and group comparison for estimated IQ, age and parent-rated CBCL T-scores

From: Neuropsychological and neurophysiological benefits from white noise in children with and without ADHD

Measure Group t test and ANOVA
TDCN = 17 ADHDN = 13 t p
Mean SD Mean SD
Estimated IQ 111.2 6.8 102.9 9.9 −2.72 .01*
Age 9.2 1.3 8.5 1.2 −1.66 .11
CBCLa       pb
Affective problemsa 56.3 6.8 62.8 7.0 2.39 .14
Anxiety problemsa 58.1 7.1 59.6 7.9 .53 .99
Somatic problemsa 56.8 5.6 55.9 6.9 −0.36 1
ADHD problemsa 53.2 5.5 64.8 7.6 4.51 <.01*
Oppositional defiant problemsa 56.9 7.7 60.3 9.5 1.00 .99
Conduct problemsa 58.4 8.9 62.7 9.5 1.18 .95
  1. * p value indicating significant difference between groups; overall α = .05
  2. a Child behavior checklist; T-scores
  3. b p values below are corrected for multiple comparisons (Bonferroni correction)
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