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Related Experiment Videos

A brief outpatient functional assessment measure: validity using Rasch measures

J G Baker1, C V Granger, R C Fiedler

  • 1Center for Functional Assessment Research, State University of New York at Buffalo 14214, USA.

American Journal of Physical Medicine & Rehabilitation
|January 1, 1997
PubMed
Summary

The Medical Rehabilitation Follow Along (MRFA) is a valid functional assessment for musculoskeletal issues. Rasch analysis confirmed its effectiveness, comparable to traditional scoring methods.

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Area of Science:

  • Rehabilitation Medicine
  • Psychometrics
  • Health Outcomes Measurement

Background:

  • The Medical Rehabilitation Follow Along (MRFA) is a brief outpatient functional assessment.
  • It was developed using Rasch analysis and has multiple forms (musculoskeletal, neurologic, MS, cardiac, pulmonary).

Purpose of the Study:

  • To compare the 31-item musculoskeletal form of the MRFA with the SF-36 general health status measure.
  • To assess the content, construct, and criterion validity of the MRFA using Rasch scoring.

Main Methods:

  • Rasch analysis was used to develop and score the MRFA.
  • The MRFA musculoskeletal form was administered before and after outpatient rehabilitation.
  • Therapist ratings of improvement were also collected.

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Main Results:

  • The results supported the validity of inferences made from the MRFA scales for patients with musculoskeletal problems.
  • Rasch scoring and raw scoring yielded similar validity results for the MRFA scales.

Conclusions:

  • The MRFA is a valid measure for assessing functional status in musculoskeletal rehabilitation.
  • Both Rasch and raw scoring methods are suitable for the MRFA, with implications for clinical practice and research.