Application of Rasch analysis in the development and application of quality of life instruments

Alan Tennant, Stephen P. McKenna, Peter Hagell

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295 Citeringar (Scopus)

Sammanfattning

This paper discusses recent advances that have been made in the field of psychometrics, specifically, the application of Rasch analysis to the instrument development process. It emphasizes the importance of assessing the fundamental scaling properties of an instrument prior to consideration of traditional psychometric indicators. The paper introduces Rasch analysis and shows how it has been applied in the development of needs-based measures in order to ensure that they provide unidimensional measurement. By ensuring that scales are based on the same measurement model and that they fit the Rasch model it is possible for QoL scores to be compared across diseases by means of cocalibration and item banking.

OriginalspråkEngelska
Sidor (från-till)S22-S26
TidskriftValue in Health
Volym7
UtgåvaSuppl. 1
DOI
StatusPublicerad - 2004
Externt publiceradJa

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