"The Bell Curve" by Richard Herrnstein and Charles Murray argued that IQ in largely genetically inherited, that low IQ is correlated with criminality and other measures of social failure. Therefore, socioeconomic successes are largely genetically inherited and many public policies are a waste of money. This volume analyses the same data and comes to very different conclusions. Written at a level suitable for upper-division students, it will be of great interest to students and researchers in statistis, education, psychology, sociology, and public policy.