Publication: Reliability and Validity of the Nepali Wolf Motor Function Test following Cross-cultural Adaptation
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Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Kathmandu University
Abstract
ABSTRACT
Background
The Wolf motor function test is a standardized, reliable and valid performance-based
measure, which evaluates upper-extremity function. Neither there is any evidence
of neurological measure in Nepali nor has this tool been cross-culturally adapted to
date.
Objective
To cross-culturally translate and evaluate reliability and validity of Nepali Wolf motor
function test.
Method
Two forward-translators translated the original version into Nepali. After synthesizing,
two back- translators translated it into English. The expert committee consolidated
and derived a final Nepali version. Two assessors pretested on three participants
to confirm that the original concept of the tool is preserved. The agreement and
correlation between back-translators were evaluated. The inter- and intra-rater
reliability and agreement of two physiotherapists on eight participants were
demonstrated through intra-class-correlation- coefficient and weighted-kappa for
time and functional ability respectively. Criterion validity was explored against Fugl-
Meyer assessment scale.
Result
A cross-culturally adapted Nepali Wolf motor function test was pretested and
ensured that the Nepali version was still retaining its equivalence (rho: 0.74 to 1.0
for time, 0.82 to 1.0 for functional ability). Good-to- excellent inter- and intra-rater
reliability {intra-class-correlation-coefficient(2,1) and (3,1): 0.80 to 1.0 and 0.81 to
1.0 respectively} were demonstrated. Excellent agreement (kappa 0.90, p<0.00) and
good correlation (rho 0.57 to 1.0) between back-translators were found. An adequate
criterion validity (rho -0.95 for time, 0.91 for functional ability) against Fugl-Meyer
assessment scale has been demonstrated.
Conclusion
A cross-culturally adapted Nepali Wolf motor function test, preserving its original
concept, was developed, and the reliability and validity of the tool on individuals
with stroke has been demonstrated.
KEY WORDS
Reliability, stroke, translation, validity, wolf motor function test
Description
Adhikari SP,1,2 Tretriluxana J,1 Chaiyawat P1
1Faculty of Physical Therapy
Mahidol University, Thailand.
2Department of Physiotherapy
Dhulikhel Hospital, Kathmandu University Hospital
Dhulikhel, Kavre, Nepal
Keywords
Reliability, Stroke, Translation, Validity, Wolf motor function test