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Bradley, Robert H.; Caldwell, Bettye M. – Developmental Psychology, 1976
Normal infants were administered the Bayley Scales of Infant Development at 6 months and the Stanford-Binet Intelligence Scale at 3 years. At 6 months the quality of stimulation found in the early environment was measured. Results indicate that home environment may contribute to instability of performance on infant tests. (GO)
Descriptors: Age Differences, Cognitive Development, Discipline, Environmental Influences

Hilgert, Larry D.; Treloar, James H. – Measurement and Evaluation in Counseling and Development, 1985
Administered the Hooper Visual Organization Test (VOT) to 54 elementary students referred for psychometric evaluation. Results showed no significant relationship between sex and VOT scores, but age and IQ were significant correlates. (JAC)
Descriptors: Age Differences, Elementary Education, Elementary School Students, Intelligence Differences