Formal and familiar materials were used to test Piagetian classification and formal operational abilities in two groups of educated adults: one group aged 30-38 and the other aged 57-82 years. Subjects did not show mastery of the tasks. Results suggest a new model of cognitive lifespan development. (Author/MS)

Examined role of age and education in adult moral reasoning. Interviewed 195 adults between ages of 19 and 82 using standard Kohlberg moral dilemmas. Subjects' education levels ranged from 3 to 25 years. Found no overall significant effect for age, no significant effect for gender, and significant effect for education. (Author/NB)

Female aging, compared to male aging, is associated with a greater decline in status and attractiveness. To investigate whether sex differences in the perception of aging function at both the cognitive and affective levels, 76 college students (38 male, 38 female), with a mean age of 22.8, viewed slides of a male and female adult. Subjects were…

The effects of age, sex, and curriculum upon the cognitive performance of 20 college students and 20 college-educated elderly individuals were examined. Young adult participants (M=20.55) and elderly participants (M=67.85) were given a battery of formal operational tasks, a measure of field independence/field dependence, a short-term memory…

This encyclopedia contains 106 articles on adult development that were written by more than 75 specialists in such diverse fields as anthropology, communication, education, health sciences, history, and psychology. In a guide to related topics that is presented at the beginning of the encyclopedia, the 106 articles are grouped under the following…