How malleable is human nature? Can an individual really change in meaningful ways? Or, are there immutable limits on the possibilities of human growth set in place by the genes and by the early experiences of childhood? These are questions which touch our deepest political and personal concerns; and they have long been a matter of fierce debate in the behavioral sciences.

Constancy and Change in Human Development takes a thorough inventory of the growing body of research which now bears upon these questions. Editors Brim and Kagan have assembled an outstanding group of...