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Friot, Faith Elizabeth – 1970
Reported is a study using tasks described by Piaget and Inhelder to evaluate changes in reasoning ability. The tasks were to evaluate the development of interpropositional logic, i.e., formal operations. The tasks used were validated using a formal operational population. They were administered at the beginning and end of the school year to…
Descriptors: Cognitive Development, Divergent Thinking, Doctoral Dissertations, Educational Research