We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Measurement error and reliability testing: Application to rehabilitation.
- Authors
Bialocerkowski, Andrea E.
- Abstract
Aims: Effective measurement of clinical outcomes is dependent on reliable outcome instruments. Measurement error and reliability testing are fundamental underpinnings of reliability. This article defines and illustrates sources of measurement error, outlines strategies for error minimization, and gives an overview of the types of reliability studies. Content: The two main sources of measurement error: systematic bias and random error, are discussed. The three major types of reliability evaluation are then illustrated: test-retest; intra-rater and inter-rater reliability, and the relationship between reliability and validity is explained. Discussion and conclusions: Quantification of measurement error is integral to determining the true effect of therapy, as quantified by outcome measurement. Interpretation of reliability data involves consideration of many factors including demographic, diagnostic and clinical characteristics of the study sample.
- Publication
International Journal of Therapy & Rehabilitation, 2008, Vol 15, Issue 10, p422
- ISSN
1741-1645
- Publication type
Academic Journal
- DOI
10.12968/ijtr.2008.15.10.31210