extended · article · 1997

Rasch Scaling of Different Forms of Thought and Different Logical Operations.

William M. Gray; Christine Fox; Christine M. Fox

Twenty-four Piagetian-based written items representing different forms (stages) of thought and different logical operations were solved by 553 participants from required introductory logic classes in a state university in a medium-sized midwestern city and from a suburban school district of that city. Responses to each item were scored by quality of thought demonstrated by the participants according to guidelines provided by B. Inhelder and J. Piaget in various sources. A partial credit Rasch analysis produced an item ordering that was theoretically supportable. Comparison of the item ordering from this study with the item ordering from a different study supported the view that Piagetian-based tasks can be scaled with sample independence and Rasch analysis can produce sample independent scales. (Contains 3 tables, 6 figures, and 76 references.) (Author/SLD) ******************************...