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Zeitoun, Hassan Hussein – 1988
The purpose of this study was to investigate the relationship between the achievement of some abstract concepts in "molecular genetics" and prior knowledge, formal reasoning ability, and sex. The major findings of the study were: (1) prior knowledge had a high significant correlation with the achievement of abstract concepts; (2) the…
Descriptors: Abstract Reasoning, Achievement, Biology, Cognitive Development
Download full textBailey, Don; Hatton, Deborah – 2001
This final report reviews the second phase of a life-span study of boys with fragile X syndrome (FSX), the most common known inherited cause of mental retardation. Males with the syndrome are more severely affected than females and in males, delays are usually evident in all the developmental domains, although cognitive and communication skills…
Descriptors: Autism, Behavior Patterns, Children, Cognitive Ability
