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Peer reviewedSpitz, Herman H.; And Others – Intelligence, 1982
Demonstrated is a covariance principle that causes the observer to assume that if one aspect of a two-dimensional figure (its perimeter or its area) is conserved, the other aspect must also be conserved (pseudo-conservation). Mentally retarded individuals, assuming no such fixed relationship, correctly judged the changed state of the nonconserved…
Descriptors: Adults, Analysis of Covariance, Cognitive Processes, Concept Formation
Peer reviewedLehrer, Richard; Randle, Lynn – Journal of Educational Computing Research, 1987
An experimental study compared the instructional effectiveness of Logo programming, commercially available software designed to aid composition and problem solving, and traditional teaching methods for low socioeconomic status first-grade students. Both software environments enhanced problem solving performance for a novel task, but Logo was most…
Descriptors: Analysis of Covariance, Comparative Analysis, Computer Assisted Instruction, Conventional Instruction
