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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)

From: The impact of instruction and response cost on the modulation of response-style in children with ADHD

MANOVA        
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
  1. η2 = partial eta squared