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Duschl, Richard – Journal of Research in Science Teaching, 1989
This paper criticizes the Yeany, Yap, and Padilla paper (1986). Questions the internal consistency about hierarchical relationships of integrated processes and cognitive reasoning concerning procedures used for the generation of subhierarchies, instrumentation used to assess the process skills, and rigor of lexicon. (YP)
Descriptors: Cognitive Processes, Formal Operations, Instrumentation, Process Education