AUTHOR=Tennant Alan , Küçükdeveci Ayse A. 

TITLE=Application of the Rasch measurement model in rehabilitation research and practice: early developments, current practice, and future challenges

JOURNAL=Frontiers in Rehabilitation Sciences

VOLUME=Volume 4 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/rehabilitation-sciences/articles/10.3389/fresc.2023.1208670

DOI=10.3389/fresc.2023.1208670

ISSN=2673-6861

ABSTRACT=Application of the Rasch Measurement Model in Rehabilitation is now well established.Both its dichotomous and polytomous forms provide for transforming ordinal scales into interval level measures, consistent with the requirements of fundamental measurement.The growth of applying the model in rehabilitation spans thirty years during which both the protocol has steadily developed and several software packages have emerged which provide for analysis, together with the 'R' language which has an increasing set of codes for applying the model. This article reviews that development, highlights current practice requirements, including those for providing the relevant information for the methods, and what is expected of the analysis. It provides a worked example, and looks at remaining issues and current developments of its application.