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Aqazade, Mahtob; Bofferding, Laura; Farmer, Sherri – North American Chapter of the International Group for the Psychology of Mathematics Education, 2016
In this study, we explore four, second graders' performances on integer addition problems before and after analyzing contrasting cases involving integers. The students, as part of a larger study, participated in a pretest, small group sessions, one short whole-class lesson on integer addition, and a posttest. Based on their integer mental models…
Descriptors: Grade 2, Elementary School Mathematics, Elementary School Students, Pretests Posttests
Steinberg, Wendy J. – 1990
The purpose of this study was to examine the nature and degree of differences in expert versus novice knowledge structures, both before and after training, when judging the similarity of multiple-choice test items within a statistics and test theory (STT) domain. Subjects were employees of the Testing Division of the New York State Department of…
Descriptors: Adults, Cognitive Structures, Comparative Testing, Government Employees