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Holt, Janke ten

A comparison between factor analysis and item response theory modeling in scale construction

Janke Ten Holt (PhD student)
Heijmans Institute
Faculty of Behavioural and Social Sciences
University of Groningen
Grote Rozenstraat 31
9712 TG Groningen

Phone: +31 50 363 6199 / 6469 (secretary)
E-mail: Janke Ten Holt

Supervisors: Dr A. Boomsma, dr M.A.J. van Duijn, dr M.E. Timmerman, prof. dr T.A.B. Snijders
Project: NWO project at University of Groningen

Project running from: 1 September 2005 – 15 July 2010

Summary

In practice, the two most important approaches for scale construction are either based on factor analytic or item response theory modeling. The proposed research deals with a comparative analysis of both methods, which differ in their assumptions, but share similar principles and coinciding goals. The stability and sensitivity of scales obtained with each method, are topics of investigation. The analysis of empirical data is part of the research design. The aim is to develop, so far lacking, practical recommendations for the applied researcher in a perhaps unified approach.

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