Table 1

Diagnostic Characteristics of the ADHD and Comparison Control Groups


ADHD
n
Controls
n
F (1, 77)

Age
15.6 (1.4)
44
15.4 (1.5)
34
0.24
Standardized Measures





Estimated VIQ
105.5 (10.6)
44
109.9 (10.0)
34
3.48
Estimated PIQ
101.6 (11.2)
44
106.4 (11.3)
34
3.45
Estimated FSIQ Score
104.1 (10.1)
44
109.4 (10.2)
34
5.20*
Auditory Working Memory Scaled Score
9.6 (3.5)
44
11.9 (2.5)
34
10.35**
Visual-Spatial Working Memory Scaled Score
9.2 (3.4)
44
11.3 (2.7)
34
8.41**
Diagnostic Characteristics from Conners Ratings





Parent





Inattention T-score
73.2 (10.1)
43
49.3 (6.8)
32
134.25***
Hyperactivity/Impulsivity T-score
72.7 (12.0)
43
51.6 (7.8)
32
74.85***
Teacher





Inattention T-score
70.9 (14.8)
37
49.7 (9.9)
28
42.97***
Hyperactivity/Impulsivity T-score
65.4 (16.3)
37
51.1 (9.2)
28
17.29***

*** p < .001, **p < .01, *p < .05

Toplak et al. Behavioral and Brain Functions 2005 1:8   doi:10.1186/1744-9081-1-8