TABLE 1.

Participants and estimated IQ by age and gender.

Age in years	Sex	N	Estimated IQ
			Mean	SD	Minimum	Maximum
8	Female	24	102.67	14.156	72	126
	Male	16	104.56	12.431	82	122
	Total	40	103.43	13.361	72	126
9	Female	24	104.33	11.970	83	127
	Male	10	102.40	14.909	78	120
	Total	34	103.76	12.699	78	127
10	Female	16	105.87	8.374	90	122
	Male	15	97.73	11.640	78	120
	Total	31	101.94	10.742	78	122
11	Female	13	93.46	14.069	73	117
	Male	17	93.88	14.044	71	113
	Total	30	93.70	13.812	71	117
12	Female	17	97.94	12.487	78	118
	Male	14	100.57	16.018	71	122
	Total	31	99.13	14.004	71	122
13	Female	17	98.24	13.184	75	117
	Male	13	99.62	9.614	87	114
	Total	30	98.83	11.603	75	117
14	Female	15	97.93	12.092	81	117
	Male	14	102.86	10.257	85	118
	Total	29	100.31	11.324	81	118
15	Female	16	104.38	10.282	75	115
	Male	15	99.20	12.405	77	114
	Total	31	101.87	11.471	75	115
Total	Female	142	101.06	12.577	72	127
	Male	114	99.91	12.820	71	122
	Total	256	100.55	12.674	71	127