Table 2 Results of MANOVA and univariate tests analyzing the impact of instruction vs. response cost on four task conditions (Speed1, Acurracy1, Speed2-RC, Accuracy2-RC) in children with ADHD (N = 34) and controls (N = 34)
MANOVA | Â | Â | Â | Â | Â | Â | Â |
|---|---|---|---|---|---|---|---|
Source |  | η 2 | p | ANOVAs | F | η 2 | p |
Group | Wilks' λ = .695 F(2/65) = 14.262 | .305 | .000 | Median RT Error | 17.260 13.083 | .207 .165 | .000 .000 |
Instruction | Wilks' λ = .188 F(2/65) = 140.281 | .812 | .000 | Median RT Error | 98.542 91.797 | .599 .582 | .000 .000 |
Reward | Wilks' λ = .168 F(2/65) = 161.087 | .832 | .000 | Median RT Error | 209.675 193.209 | .761 .745 | .000 .000 |
Group by Instruction | Wilks'λ.= .870 F(2/65) = 4.845 | .130 | .011 | Median RT Error | 9.222 3.057 | .123 .044 | .003 .085 |
Group by Reward | Wilks' λ = .909 F(2/65)) = 3.263 | .091 | .045 | Median RT Error | 5.102 .458 | .072 .007 | .027 .501 |
Instruction by Reward | Wilks' λ = .151 F(2/65) = 182.786 | .849 | .000 | Median RT Error | 57.004 248.020 | .463 .790 | .000 .000 |
Group by Instruction by Reward | Wilks' λ = .58 F(2/65) = 1.417 | .042 | .250 | Median RT Error | .563 2.707 | .008 .039 | .456 .105 |