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Further Remarks on Nondichotomization of Graded Responses

Published online by Cambridge University Press:  01 January 2025

David Andrich
David Andrich*
Affiliation:
School of Education, Murdoch University
*
Requests for reprints should be sent to David Andrich, School of Education, Murdoch University, Murdoch WA 6150, AUSTRALIA.
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Extract

In addition to addressing the points raised in Roskam (1995) as a rejoinder to Andrich (1995), these further remarks on the nondichotomization of graded responses attempt to clarify the difference in perspective between the two articles that gives rise to the different appreciation of what appear to be the same details. Therefore, these remarks take the following form: first, a brief comment is made on the development of the argument and perspective against routine dichotomization of graded responses (which is often seen as no more than commonsense); second, some points raised in the rejoinder are reexamined and clarified from this perspective; third, the perspective is consolidated with examples to show the way in which nondichotomization of graded responses is consistent with intuition. Roskam (1995) and Andrich (1995) are referred to, respectively, as the rejoinder and the paper.

Keywords

Public PolicyStatistical TheoryAnalytic Difference
Type
Original Paper
Information
Psychometrika , Volume 60 , Issue 1 , March 1995 , pp. 37 - 46
Copyright
Copyright © 1995 The Psychometric Society

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