Original articlePsychometric Properties of a Modified Wolf Motor Function Test for People With Mild and Moderate Upper-Extremity Hemiparesis
Section snippets
Participants
All participants were part of a larger training intervention study, and reliability measurements were performed in the context of pretraining baseline testing. Participants were recruited through local hospitals and advertisements. Informed consent, approved by the joint Veterans Affairs–University of Maryland institutional review board, was obtained from all participants before inclusion in the study. Initial evaluations included a medical history, the Folstein Mini-Mental State Examination,
Step 1: Videotape Versus Observation
Scores for the mean and median performance times and median functional ability scales are presented in table 1. Because our sample included patients with a range of disability severity, it is noteworthy that using the median time results in a floor effect for subjects 2 and 9. The ICCs for mean and median time were .99 and .96, respectively, and .99 for functional ability.
Step 2: Test-Retest Reliability, Item Stability, and Criterion Validity
The test-retest ICC2,1 values of the total scores were high, ranging from .92 to .99, whether or not the subjects were
Discussion
In this study, we determined the psychometric properties of a modified WMFT for subjects with mild- and moderate-severity hemiparesis. As a preliminary step, in a small sample, we compared results from videotaping with direct observation and determined that the latter provided similar results with a higher correlation as did 3 raters using the videotape. In a larger sample we showed good test-retest reliability and stability of the timed and functional ability scores and individual items across
Conclusions
The WMFT (modified for more impaired subjects) can be used without videotape and has good interrater reliability and high criterion validity with the UE FMA in subjects with both mild- and moderate-severity hemiparesis. The test-retest reliability results are high, but the stability assessment shows that it may be prudent to administer the WMFT a second time to obtain stable measures. Overall, the clinical and scientific applicability of the WMFT is broadened.
Acknowledgments
We thank Richard Macko, MD, for screening subjects; Jennifer Sulin-Stair for assistance with data collection; and Steven Wolf, PT, PhD, for helpful comments on an earlier draft of this article.
References (23)
- et al.
Forced use of hemiplegic upper extremities to reverse the effect of learned nonuse among chronic stroke and head-injured subjects
Exp Neurol
(1989) - et al.
The reliability of the Wolf motor function test for assessing upper extremity function after stroke
Arch Phys Med Rehabil
(2001) - et al.
Constraint-induced movement therapy for motor recovery in chronic stroke subjects
Arch Phys Med Rehabil
(1999) - et al.
Longer versus shorter daily constraint-induced movement therapy of chronic hemiparesisan exploratory study
Arch Phys Med Rehabil
(2002) - et al.
Modified constraint-induced therapy in subacute strokea case report
Arch Phys Med Rehabil
(2002) - et al.
Constraint-induced therapy for a child with hemiplegic cerebral palsya case report
Arch Phys Med Rehabil
(2002) Heart disease and stroke statistics—2003 update
(2002)- et al.
Agonist and antagonist activity during voluntary upper limb movement in subjects with stroke
Phys Ther
(1992) A performance test for assessment of upper limb function in physical rehabilitation treatment and research
Int J Rehabil Res
(1981)- et al.
Development and reliability of an upper extremity function test for the elderlythe TEMPA
Can J Occup Ther
(1993)
A reliable test of upper extremity ADL function
Arch Phys Med Rehabil
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Supported by the National Institute of Disability and Rehabilitation Research (grant no. H133G010111) and the Claude Pepper Older Americans Independence Center, National Institute on Aging (grant no. P6012583).
No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit upon the author(s) or upon any organization with which the author(s) is/are associated.