Table 3.

Effect size of diagnostic group in un/adjusted tests of group means and sensitivity analyses

	Co-variation analyses				Sensitivity analyses
	Unadjusted group differences	Adjusted for IQ, age, sex	Adjusted for ADHD, IQ, age, sex	Adjusted for conduct problems, IQ, age, sex	Exclude IQ < 70	Exclude those in ASD over ADHD cut-off	Post hoc contrasts of adjusted group means (adjusted for IQ, age, sex)
Effect size as indicated by partial η2
Go/NoGo: probability of inhibition	0.23**	0.21**	0.21**	0.21**	0.19**	0.17**	ASD < CD/ODD**, ADHD**, TD**
Switch: reaction time cost	0.03	0.04	0.04	0.02	0.04	0.04	–
Switch: error cost	0.01	0.02	0.02	0.02	0.01	0.02	–
Go/NoGo: ICV	0.15**	0.10**	0.05	0.08*	0.13**	0.13**	TD < ADHD*, ODD/CD*, ASD**
Switch: ICV	0.12**	0.09**	0.04	0.02	0.13**	0.13**	TD < ADHD*, ODD/CD**
Effect size as indicated by w
Go/NoGo: premature responses	0.36**	0.31**	0.27*	0.30**	0.33**	0.32**	ODD/CD > TD^ ASD > TD**
Switch: premature responses	0.26*	0.23	0.17	0.21	0.26*	0.27*	–

ICV intra-individual coefficient of variability

** p < 0.01, * p < 0.05, ^ p = 0.06; for partial η ², 0.1 = small, 0.6 = medium, 0.14 = large effect; for w, 0.1 = small, 0.3 = medium, 0.5 = large effect [40]