GRE Quantitative Scores by Race, Sex, and Year

When analyzed by race and sex over a three year period, 1997 to 1999, Graduate Record Examination Quantitative scores varied by an average of only 2.5 points, with the largest variation being Indian men with a 19 point difference between 1997 and 1999.  Conversely, the average difference between the sexes was 65 points, with the biggest difference being the 73 point spread between White men and women and the smallest being the 42 point spread between Black men and women.   The average difference between the sexes was thus 26 times larger than the average error that may be caused by inaccuracies in the test scores.  Even the anomaly in the 1997 score for Indian men didn't change the difference between Indian men and Indian women by that much (from 52 to 69 points).  Considering that the average difference between the sexes was 65 points, and that the difference between White men and White women was 73 points, it's likely that this anomaly in 1997 was an actual math error made when the scores were being tabulated.  No other race or sex showed such a wide variation, and the 1998 and 1999 scores for Indian men were consistent with each other.

The actual correlation between brain size and GRE scores for Asians, Blacks, and Whites by sex for these three years varied from r-squared of 0.872 to 0.8832

1997-98

1998-99

	1996-97
Race/sex	Number	Pct	Verbal	SD	Quanti tative	SD	Analy tical	SD	Number	Pct	Verbal	SD	Quanti tative	SD	Analytical	SD	Quanti tative
Indian	1,586	1	456	99	479	118	506	124	1,580	1	456	100	486	125	500	130	485
Men	588	<1	466	101	511	123	502	126	606	<1	467	105	525	130	510	133	530
Women	998	<1	451	97	459	110	508	124	974	<1	449	96	462	115	493	127	461
Asian	13,115	5	487	117	598	124	557	127	12,274	5	486	117	602	125	569	131	601
Men	5,097	2	490	121	638	117	566	131	4,853	2	491	120	640	120	555	137	643
Women	8,018	3	484	114	572	121	552	124	7,421	3	483	115	577	122	544	127	575
Black	22,923	8	391	90	416	112	423	111	22,124	9	392	91	417	116	416	113	419
Men	6,410	2	399	93	446	125	429	118	6,205	2	399	93	448	129	422	118	450
Women	16,513	6	388	88	404	104	421	109	15,919	6	389	90	405	108	414	110	408
Mexican	5,755	2	435	97	475	123	483	122	5,515	2	434	97	478	125	471	124	476
Men	2,120	1	449	101	517	131	495	126	2,011	1	447	100</