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Peer reviewedSimpson, Ronald D.; Oliver, J. Steve – Science Education, 1990
Major findings and prediction models resulting from longitudinal research are presented. Discussed are the study design; variables, trends, and profiles; a follow-up study; and implications and policy recommendations. A summary model designed to explain this phenomenon is given. (CW)
Descriptors: Academic Achievement, Elementary School Science, Elementary Secondary Education, Longitudinal Studies
