Table 1.

Zero-Order Correlations Among Study Variables

Variable	1	2	3	4	5	6	7
1. Parental SES	1.00
2. WAIS IQ	.25	1.00
3. WRAT Reading	.22	.48	1.00
4. Age 17 GPA	.20	.31	.33	1.00
5. Age 17 AAB	−.04	−.09	−.08	−.30	1.00
6. Attained Education	.36	.32	.28	.47	−.31	1.00
7. Age 24 AAB	−.06	−.05	−.05	−.20	.41	−.21	1.00

Note: SES is socioeconomic status; WAIS is Wechsler Adult Intelligence Scale; WRAT is Wide Range Achievement Test; GPA is grade point average; attained education was measured at age 24; AAB is log-transformed symptoms of DSM Adult Antisocial Behavior. Correlations of .09 or greater differ significantly from 0 at p<.01, adjusting for paired twin data.