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The Principle of Conservation or Invariance and Its Relationship to Achievement in Science in the Junior High School.
Leon, Lionel Oscar – 1971
Three assumptions formed the basis for the study: that formal mental operations are expressed by the formation of concepts; that the psychological principle of conservation characterizes the final step in concept formation; and that the attainment of conservation enables the individual to perform the hypothetico-deductive reasoning required for…
Descriptors: Academic Achievement, Concept Formation, Doctoral Dissertations, Educational Psychology