Skip to main content
main-content
Top

Tip

Swipe om te navigeren naar een ander artikel

01-05-2009 | Uitgave 4/2009

Quality of Life Research 4/2009

Rasch analysis of 24-, 18- and 11-item versions of the Roland-Morris Disability Questionnaire

Tijdschrift:
Quality of Life Research > Uitgave 4/2009
Auteur:
Megan Davidson

Abstract

Purpose

The aim of this study was to examine fit of the original 24-item Roland-Morris Disability Questionnaire and three short-form versions to a Rasch model with particular attention to targeting of item difficulty and to differential item functioning.

Methods

Cross-sectional survey of 140 people with low back pain seeking physiotherapy treatment. Data were analysed using a dichotomous Rasch model.

Results

All versions showed adequate overall data fit to the Rasch model, with few misfitting items. Person separation was around 0.85 for all versions. Item 5 (use a handrail to get upstairs) showed differential item functioning by age. Targeting of persons of high ability was poor and short-form versions also had poor targeting of persons of low ability. Items of similar difficulty clustered in the centre of the logit scale.

Conclusion

Although the Roland data fit the Rasch model, there were insufficient items of higher difficulty to sufficiently evaluate disability in persons with mild disability. Short-form versions also lacked items of lower difficulty.

Log in om toegang te krijgen

Met onderstaand(e) abonnement(en) heeft u direct toegang:

BSL Podotherapeut Totaal

Binnen de bundel kunt u gebruik maken van boeken, tijdschriften, e-learnings, web-tv's en uitlegvideo's. BSL Podotherapeut Totaal is overal toegankelijk; via uw PC, tablet of smartphone.

Literatuur
Over dit artikel

Andere artikelen Uitgave 4/2009

Quality of Life Research 4/2009 Naar de uitgave