Skip to main content
. 2016 Mar 1;10:50. doi: 10.3389/fnins.2016.00050

Table 2.

Behavioral performance.

Controls ADHD TS Repeated Measure ANOVA ANCOVA
Mean ±SD Mean ±SD Mean ±SD Outcome Group Outcome × group Group Covariates
RT CC (ms) 646.44 ± 19.69 677.37 ± 18.43 652.99 ± 21.26 F(2, 192)=136.9,p<0.001,ηp2=0.59 F(2, 96)=2.85,p=0.06,ηp2=0.06 F(4, 192) = 1.14, n.s. F(2, 94) = 0.65, n.s. FSIQ F(1, 94)=11.77,p<0.001,ηp2=0.11; Age F(1, 94)=64.68,p<0.001,ηp2=0.41
RT IC (ms) 773.11 ± 25.73 840.70 ± 24.01 789.58 ± 27.77 F(2, 94) = 1.77, n.s. FSIQ F(1, 94)=10.19,p<0.01,ηp2=0.09; Age F(1, 94)=61.04,p<0.001,ηp2=0.39
RT error (ms) 624.42 ± 29.70 644.70 ± 27.79 627.28 ± 32.06 F(2, 94) = 0.13, n.s. FSIQ F(1, 94)=7.5,p<0.01,ηp2=0.07; Age F(1, 94)=34.06,p<0.001,ηp2=0.27
IIV CC (ms) 209.48 ± 10.98 245.21 ± 10.27 231.66 ± 11.85 F(2, 192)=25.46,p<0.001,ηp2=0.21 F(2, 96)=5.68,p<0.01,ηp2=0.11 F(4, 192) = 0.71, n.s. F(2, 94) = 2.46, n.s. FSIQ F(1, 94)=14.43,p<0.001,ηp2=0.13; Age F(1, 94)=32.72,p<0.001,ηp2=0.26
IIV IC (ms) 245.13 ± 12.95 261.21 ± 12.12 266.46 ± 13.98 F(2, 94) = 0.66, n.s. FSIQ F(1, 94)=12.66,p<0.001,ηp2=0.12; Age F(1, 94)=22.48,p<0.001,ηp2=0.19
IIV error (ms) 271.01 ± 20.41 309.89 ± 19.09 290.70 ± 22.03 F(2, 94) = 0.83, n.s. FSIQ F(1, 94)=7.75,p<0.01,ηp2=0.08; Age F(1, 94)=26.73,p<0.001,ηp2=0.22
Compatible errors(%) 6.57 ± 1.07 7.85 ± 1.01 9.32 ± 1.26 F(1, 96)=142.14,p<0.001,ηp2=0.6 F(2, 96)=2.46,p=0.09,ηp2=0.05 F(2, 96)=3.01,p=0.06,ηp2=0.06 F(2, 92) = 1.47, n.s. FSIQ F(1, 94)=7.12,p<0.01,ηp2=0.07
Incompatible errors (%) 18.96 ± 2.37 20.65 ± 2.21 21.78 ± 2.56 F(2, 92) = 0.32, n.s. FSIQ F(1, 92)=9.53,p<0.01,ηp2=0.003
Responses < 200 ms (n) 6.79 ± 2.64 4.77 ± 2.47 9.01 ± 2.85 F(2, 94) = 0.63, n.s. FSIQ F(1, 94)=8.35,p<0.01,ηp2=0.08
Responses >2000 ms (n) 12.49 ± 3.59 21.65 ± 3.36 11.73 ± 3.87 F(2, 94) = 2.29, n.s. FSIQ F(1, 94)=7.22,p<0.01,ηp2=0.07; Age F(1, 94)=23.22,p<0.001,ηp2=0.19
PES (ms) 79.47 ± 20.71 87.11 ± 19.38 36.73 ± 22.36 F(2, 94) = 1.67, n.s.
Overall RT (ms) 695.49 ± 22.16 735.80 ± 20.73 690.72 ± 23.92 F(2, 94) = 1.21, n.s. FSIQ F(1, 94)=8.01,p<0.01,ηp2=0.08; Age F(1, 94)=56.71,p<0.001,ηp2=0.38
Overall IIV (ms) 255.11 ± 11.26 286.59 ± 10.53 270.25 ± 12.15 F(2, 94) = 1.8, n.s. FSIQ F(1,94)=17.21,p<0.001,ηp2=0.15; Age F(1, 94)=38.29,p<0.001,ηp2=0.29
Overall RACC (%) 86.68 ± 1.63 86.54 ± 1.52 84.64 ± 1.75 F(2, 92) = 0.25, n.s. FSIQ F(1, 92)=10.05,p<0.01,ηp2=0.10

CC, compatible correct; IC, incompatible correct; PES, post-error slowing; RT, reaction time; IIV, intraindividual variability; RACC, response accuracy; ANCOVA, analysis of covariance; ANOVA, analysis of variance, ADHD, attention-deficit/hyperactivity disorder; TS, Tourette syndrome; SD, standard deviation; n.s., not significant; Responses >2000 ms are considered equivalent to omissions, Responses < 200 ms are considered false alarms.