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Table 1 Diagnostic Characteristics of the ADHD and Comparison Control Groups

From: Executive and motivational processes in adolescents with Attention-Deficit-Hyperactivity Disorder (ADHD)

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