In The Bell Curve, Herrnstein and Murray demonstrate that a mother's score on the Armed Forces Qualification Test (AFQT) is a powerful predictor of her child's score on the Peabody Picture Vocabulary Test (PPVT). We replicate this finding for PPVT and two related tests. However, even after...

Little is known about the long-term effects of participation in Head Start. This paper draws on unique non-experimental data from the Panel Study of Income Dynamics to provide new evidence on the effects of participation in Head Start on schooling attainment, earnings, and criminal behavior....

In The Bell Curve, Herrnstein and Murray demonstrate that a mother's score on the Armed Forces Qualification Test is a powerful predictor of her child's score on a cognitive achievement test. We replicate this finding. However, even after controlling for maternal scores, there are significant...