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The Fears of Adolescents
Peer reviewed Peer reviewed
Bamber, James H. – Journal of Genetic Psychology, 1974
This study investigated the self-reported fears and some personality characteristics of a sample of 1112 adolescents ranging in age from 12 to 18 years (attending grammar and secondary schools in Northern Ireland). (CS)
Descriptors: Adolescents, Age Differences, Fear, Intelligence Differences
The Performance of Cultural-Familial Retardates on Conservation Tasks
Peer reviewed Peer reviewed
Lesser, Harvey; And Others – Journal of Genetic Psychology, 1978
Compared the performance of 29 institutionalized cultural-familial mental retardates on Piagetian conservation tasks. Examined the effects of age, sex, and degree of retardation on conservation performance. (BD)
Descriptors: Age Differences, Cognitive Development, Conservation (Concept), Developmental Stages
A Longitudinal Investigation of the Intellectual Differentiation Hypothesis
Peer reviewed Peer reviewed
Osborne, R. T.; Suddick, D. E. – Journal of Genetic Psychology, 1972
The mental growth patterns of 204 children were investigated on four different test occasions covering a five-year period, ages six to 11. There is no evidence of intellectual differentiation after age six nor is there a systematic decline in size of WISC subtest intercorrelations with increasing age. (Authors)
Descriptors: Age Differences, Factor Structure, Hypothesis Testing, Intelligence Differences