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Hamel, B. Remmo; Van Der Veer, M. A. A. – British Journal of Educational Psychology, 1972
A significant positive correlation between multiple classification was found, in testing 65 children aged 6 to 8 years, at the stage of concrete operations. This is interpreted as support for the existence of a structure d'ensemble of operational schemes in the period of concrete operations. (Authors)
Descriptors: Classification, Cognitive Processes, Developmental Psychology, Elementary School Students
Peer reviewed Peer reviewed
Overton, Willis F.; And Others – Child Development, 1971
Results are discussed in terms of the development and activation of cognitive structures. (Authors)
Descriptors: Classification, Elementary School Students, Logical Thinking, Measurement Techniques