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Hooper, Frank H.; And Others – 1979
This 4-year longitudinal study of logical reasoning found complex interrelationships among different cognitive processes of children ages 6 to 15. Piaget's stage theory is discussed in the introduction, with a focus on the concrete operational stage in middle childhood. In the study, a representative array of logical concept tasks and short-term…
Descriptors: Adolescents, Child Development, Children, Cognitive Ability