This study examined the transition from concrete to formal operations in very bright children in an effort to determine whether high ability in concrete operations would carry over into formal operational ability, and also to investigate precocity in regard to formal operations. Subjects were 38 white middle-class children ranging in age from…

Previous research on intelligence and aging has relied on tests developed for younger adults, which often incorporate many factors that could impede optimal performance in elderly populations. To investigate short-term longitudinal changes in memory, intelligence, and perceived competence in everyday situations among older adults, 227 adults were…

Based largely on research in adult development and aging, these readings and discussion questions pertain to such aspects of development and adjustment in middle life as the following: individual differences in aging; biological changes through the adult years; changes in the physical senses (vision, hearing, taste, smell, touch, and pain)…

This longitudinal study examined the multiple influences of social class and family socialization on intelligence at age 7, and on the development of cognitive competence from age 7 through age 15 in a sample of 121 urban Icelandic children and adolescents. Socialization condition was defined as sources of parental support and control strategies,…