Summarizes the major forms of cross-cultural research on personality development and discusses their contribution to developmental research. Also discusses some major issues in research on acculturation. (Author/SS)

Describes the results of four longitudinal studies of adolescent development that focus on coping styles, maturity of defenses, adaptation to school environments, and predictors of educational and occupational attainment. Implications are discussed in terms of linking adolescence with other phases of development. (Author/SS)

Reviews the research methods, design, and main findings of the Austin-Mexico City cross-cultural study of personality and intellectual development using an overlapping longitudinal design. A span of 12 years of development was extrapolated from six years of repeated testing with children ages 6, 9, and 12 years. (SS)