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Table 1 Main group characteristics and overall performance on the incentive go/no-go task

From: Hyperresponsiveness to social rewards in children and adolescents with attention-deficit/hyperactivity disorder (ADHD)

  ADHD group
(n = 16)
Control group
(n = 16)
Group differencesa
  M (SD) M (SD)  
Age (years) 10.7 (1.6) 10.2 (1.3) ns
IQ (WISC-III) 97.1 (14.2) 102.7 (9.5) ns
CBCL (parent rating)    
Internalizing 60.4 (7.7) 52.3 (10.7) p = .01
Externalizing 64.1 (4.8) 52.9 (6.6) p < .001
Attention 71.1 (5.6) 54.4 (3.7) p < .001
FBB-HKS (parent rating) 82.6 (10.4) 36.7 (18.9) p < .001
FA baseline 29.0 (10.7) 30.0 (13.9) ns
FA social reward 13.1 (7.3) 22.1 (10.9) p = .011
FA monetary reward 10.6 (8.5) 14.8 (10.8) ns
RT hits baseline 446.3 (84.3) 435.8 (46.1) ns
RT hits social reward 438.8 (88.7) 414.6 (43.2) ns
RT hits monetary reward 454.4 (80.4) 416.8 (58.4) ns
RT false alarms baseline 355.2 (75.5) 407.5 (134.3) ns
RT false alarms social reward 396.4 (121.1) 401.3 (126.0) ns
RT false alarms monetary reward 397.9 (65.9) 388.7 (164.5) ns
  1. Note: ADHD = Attention-deficit/hyperactivity disorder; CBCL = Child Behavior Checklist (T scores are reported); FBB-HKS = German Parental Report on ADHD symptoms (percentiles); FA = false alarm rate (%); RT = Reaction time (in msec).
  2. aTwo-tailed t-tests.