Table 1.

Descriptive statistics for executive function variables.

	N	Theoretical range	Mean	Std. Dev
Age 8: Flanker incongruent accuracy	75	0–1	0.95	0.07
Age 8: DCCS non-dominant accuracy	77	0–1	0.83	0.11
Age 12: Flanker score	67	0–10	7.79	0.45
Age 12: DCCS score	67	0–10	7.28	0.63

Note: Only children who participated at both time points are included.