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X-ray your data with Rasch

Curtis, David & Boman, Peter (2007) X-ray your data with Rasch. International Education Journal, 8(2), pp. 249-259.

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Abstract

By using the Rasch model, much detailed diagnostic information is available to developers of survey and assessment instruments and to the researchers who use them. We outline an approach to the analysis of data obtained from the administration of survey instruments that can enable researchers to recognise and diagnose difficulties with those instruments and then to suggest remedial actions that can improve the measurement properties of the scales included in questionnaires. We illustrate the approach using examples drawn from recent research and demonstrate how the approach can be used to generate figures that make the results of Rasch analyses accessible to non-specialists.

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6 citations in Scopus
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ID Code: 28875
Item Type: Journal Article
Keywords: Rasch, Partial Credit Model, Reliability, Threshold Analysis, Differential Item Function
ISSN: 1443-1475
Subjects: Australian and New Zealand Standard Research Classification > EDUCATION (130000) > SPECIALIST STUDIES IN EDUCATION (130300) > Education Assessment and Evaluation (130303)
Divisions: Current > Research Centres > Office of Education Research
Current > Schools > School of Cultural & Professional Learning
Current > QUT Faculties and Divisions > Faculty of Education
Copyright Owner: Copyright 2007 Shannon Research Press
Deposited On: 27 Nov 2009 11:55
Last Modified: 25 Mar 2013 18:20

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