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Peer reviewedLim, Tock Keng – Intelligence, 1988
Heim's AH4 Test of General Intelligence, Raven's Advanced Progressive Matrices, and two Piagetian formal operations tests (Shayer's Science Reasoning Tasks and Arlin's Test of Formal Reasoning) were administered to 459 15-year-olds attending Secondary three (grade nine) in Singapore. A hierarchical factor structure was found underlying all of…
Descriptors: Factor Structure, Formal Operations, Grade 9, High School Freshmen
Peer reviewedBradmetz, Joel – Intelligence, 1996
In a study of operative thought in children, 104 children, aged 4 to 9, were tested 5 times with the same 25 Piagetian tasks. There were manifest indicators of synergy in the development of the various behaviors, but it was not possible to validate specific problems of behavior organization. (SLD)
Descriptors: Age Differences, Behavior Patterns, Child Development, Children
