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Arch Phys Med Rehabil. 2001 Jun;82(6):750-5.

The reliability of the wolf motor function test for assessing upper extremity function after stroke.

Author information

  • 1Division of Physical Therapy, University of Alabama, Birmingham 35294, USA. morrisd@uab.edu

Abstract

OBJECTIVE:

To examine the reliability of the Wolf Motor Function Test (WMFT) for assessing upper extremity motor function in adults with hemiplegia.

DESIGN:

Interrater and test-retest reliability.

SETTING:

A clinical research laboratory at a university medical center.

PATIENTS:

A sample of convenience of 24 subjects with chronic hemiplegia (onset >1yr), showing moderate motor impairment.

INTERVENTION:

The WMFT includes 15 functional tasks. Performances were timed and rated by using a 6-point functional ability scale. The WMFT was administered to subjects twice with a 2-week interval between administrations. All test sessions were videotaped for scoring at a later time by blinded and trained experienced therapists.

MAIN OUTCOME MEASURE:

Interrater reliability was examined by using intraclass correlation coefficients and internal consistency by using Cronbach's alpha.

RESULTS:

Interrater reliability was.97 or greater for performance time and.88 or greater for functional ability. Internal consistency for test 1 was.92 for performance time and.92 for functional ability; for test 2, it was.86 for performance time and.92 for functional ability. Test-retest reliability was.90 for performance time and.95 for functional ability. Absolute scores for subjects were stable over the 2 test administrations.

CONCLUSION:

The WMFT is an instrument with high interrater reliability, internal consistency, test-retest reliability, and adequate stability.

PMID:
11387578
[PubMed - indexed for MEDLINE]
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