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Peer reviewedvan Duyne, John; D'Alonzo, Bruno J. – Journal of Psychology, 1980
Descriptors: Age Differences, Cognitive Development, Developmental Tasks, Eye Hand Coordination
Download full textClausen, John A. – 1971
The human life course is examined so as to clarify the nature and meaning of age to members of different social classes at different periods of their lives. The author utilizes a developmental framework: life is made up of interlinked role sequences involving cumulative learning. Each stage builds on the previous one. Within this framework, the…
Descriptors: Age, Age Differences, Age Groups, Career Development
Peer reviewedMcCall, Robert B. – Monographs of the Society for Research in Child Development, 1974
Reports a series of studies conducted to investigate possible differences in the exploratory manipulation and play behavior of human infants 7-1/2- 11-1/2 months of age as a function of the attributes of the stimulus, the familiarity of the subject with the stimuli, the age and sex of the infants, and individual differences. (Author/CS)
Descriptors: Age Differences, Behavioral Science Research, Cognitive Development, Developmental Psychology
Frey, Sherman – 1980
A Self-Concept Scale for Adolescents based on Havighurst's Developmental Tasks for Youth was constructed to reflect the adolescents' perceptions of their ability to achieve these tasks in relation to personal abilities, the abilities of others, and the criteria for successful task completion. A validity and reliability study showed the scale to be…
Descriptors: Adolescents, Age Differences, American Indians, Developmental Tasks
Frey, Sherman – 1980
A Self-Concept Scale for Adolescents based on Havighurst's Developmental Tasks for Youth was constructed to reflect adolescents' perceptions of their ability to achieve these tasks in relation to personal abilities, the abilities of others, and the criteria for successful task completion. A validity and reliability study showed the scale to be…
Descriptors: Adolescents, Age Differences, American Indians, Comparative Analysis
