A chronicle of controversies over testing (heredity-environment, experimenter bias, social class bias, tests as sorters for schools and society) and the difficulties that ensue when the scholar enters the arena of public policy. The thesis is offered that the hearing given to social evidence and issues depends on the times and the audience, with…

Perinatal variables were used to predict 7-year outcome for 538 children, 32% Negro and 68% white. Mother's age, birthplace, education, occupation, marital status, neuropsychiatric status, family income, number supported, birth weight, one- and five-minute Apgar scores were regressed on 7-year Verbal, Performance and Full Scale IQ, Bender, Wide…