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Peer reviewedLawson, Anton E.; Blake, Anthony J. D. – Journal of Research in Science Teaching, 1976
Students were classified as formal or concrete-operational using a battery of Piagetian tasks, a biology content examination, and a nonscience content examination. Based on the results it was concluded that Piagetian tasks are relatively content-free and can serve as realistic indicators of concrete and formal thinking abilities. (MLH)
Descriptors: Biology, Cognitive Processes, Developmental Tasks, Educational Research
