Table 4.

Means and standard deviations of RT and residual RT scores by time point and sex.

				Raw RT		Residual RT
			Count	Mean	SD	Mean	SD
Infancy	Male	T	67	1840.75	418.98	0.12	1.33
		C	35	1784.86	293.76	−0.06	0.93
	Female	TT	48	1763.96	303.61	−0.12	0.97
		CT	38	1834.21	391.54	0.09	1.25
		CC	11	1728.18	259.92	−0.24	0.82
Childhood	Male	T	67	364.10	45.20	−0.01	0.66
		C	35	352.60	27.89	−0.29	0.54
	Female	TT	48	364.52	39.55	−0.09	0.60
		CT	38	365.49	37.97	−0.06	0.66
		CC	11	351.30	29.73	0.06	0.72

Note. Age was controlled by residualizing RT within time point and saving the standardized scores. Residual RT can be interpreted as a Z-score.