Table 2.

Neurocognitive Variables

Variable	ADHD (N=77)		Non-ADHD (N=40)		Cohen’s d	BF10	BF01
	M	SD	M	SD
Working Memory Performance Data (Stimuli Correct/Trial)
PH 3	2.85	0.25	2.84	0.22	−0.04		4.69
PH 4	3.34	0.62	3.68	0.32	0.62	14.28
PH 5	3.54	1.02	4.28	0.68	0.80	218.89
PH 6	2.98	1.30	4.28	1.13	1.04	1.80 × 104
VS 3	2.11	0.62	2.50	0.40	0.71	51.47
VS 4	2.44	0.93	3.34	0.55	1.10	6.49 × 104
VS 5	2.48	1.08	3.40	1.02	0.88	775.82
VS 6	2.12	1.12	3.46	1.20	1.17	2.53 × 105
Stop Signal Performance Data (milliseconds)
MRT block 1	603.80	92.10	603.91	89.57	−0.01		4.75
MRT block 2	606.56	98.29	636.61	80.14	0.31		1.47
MRT block 3	604.67	98.42	634.70	85.19	0.33		1.53
MRT block 4	607.20	106.74	642.82	80.22	0.36		1.12
SSD block 1	269.64	76.66	302.96	72.68	0.59	1.85
SSD block 2	260.99	84.54	303.62	79.53	0.54	3.94
SSD block 3	265.33	82.09	302.30	73.11	0.44	2.37
SSD block 4	263.08	90.67	301.15	82.61	0.41	1.68
Derived Executive Function Component Scores (Z-scores)
Visuospatial Working Memory	−0.28	1.00	0.54	0.76	0.89	1.18 × 103
Phonological Working Memory	−0.19	1.09	0.37	0.66	0.58	9.50
Inhibitory Control	−0.14	1.04	0.27	0.88	0.42	1.53
Processing Speed	−0.06	1.06	0.11	0.88	0.17		3.43
SFIQres	0.53	13.99	−1.03	11.06	0.12		4.08

Note. BF₁₀ = Bayes Factor for the alternative hypothesis over the null hypothesis (values > 3.0 indicate significant between-group differences). BF₀₁ = Bayes Factor for the null hypothesis over the alternative hypothesis (values > 3.0 indicate significant between-group equivalence; BF₀₁ = 1/BF₁₀); MRT = Mean reaction time (milliseconds); PH = Phonological Working Memory (Stimuli Correct/Trial); SSD = stop-signal delay (milliseconds); VS = Visuospatial Working Memory (Stimuli Correct/Trial).