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Table 2 Age, IQ and behaviour ratings for the ADHD and control children.

From: More to ADHD than meets the eye: Observable abnormalities in search behaviour do not account for performance deficits on a discrimination task

 

CONTROLS

AD/HD

 

Mean age

9.9 (0.7)

10.5 (1.5)

t = 1.65

Mean IQ

110.3(17.8)

106.7 (13.1)

t = 0.71

% conduct problems

0

35

χ2 = 8.48**

% emotional problems

0

20

χ2 = 4.44*

  1. Note: AD/HD = Attention Deficit/ Hyperactivity Disorder; * p < 0.05; ** p < 0.01; % behaviour problems based on children meeting SDQ criteria for presence of difficulties at home and school. Figures in parentheses are standard deviations.