學院

醫學院

系所

職能治療學系

題名

Rasch validation of the streamlined Wolf Motor Function Test in patients with chronic and subacute stroke

作者

Chen, H-F.†, Wu, C-Y.†, Lin, K-C.*, Chen, H-C., Chen, C. P-C., & Chen, C-K.

期刊名稱

Physical Therapy (SCI 期刊)

發表日期

2012年8月

著作性質

原著

語文

英文

關鍵字

摘要


Background. The construct validity and reliability of the short form of the Wolf Motor Function Test (S-WMFT) in people with subacute stroke and chronic stroke(S-WMFT subacute stroke and chronic stroke versions) have not been investigated.

Objective. The purpose of this study was to investigate the dimensionality, item difficulty hierarchy, differential item functioning (DIF), and reliability of the S-WMFTsubacute stroke and chronic stroke versions in people with mild to moderate upper-extremity (UE) dysfunction.

Design. This was a secondary study in which data collected from randomized controlled trials were used.

Methods. Data were collected at baseline from 97 people with chronic stroke(12 months after stroke) and 75 people with subacute stroke (3–9 months afterstroke) at 3 medical centers in Taiwan. Test structure, hierarchical properties, DIF,and reliability were assessed with Rasch analysis.

Results. The test structure for both versions was unidimensional. No DIF relevantto sex, age, or stroke location (hemispheric laterality) was detected. The tasks ofmoving a hand to a box and moving a hand to a table in the S-WMFT for subacutestroke showed a significantly high correlation. The reliability coefficients for bothversions were approximately .90. Limitations. The findings were limited to people with stroke and mild to moderateimpairment of UE function.

Conclusions. The S-WMFT subacute stroke and chronic stroke versions are useful tools for assessing UE function in different subgroups of people with stroke and showevidence of construct validity and reliability. A high correlation between the tasks ofmoving a hand to a box and moving a hand to a table in the S-WMFT for subacutestroke suggests that the removal of 1 of these 2 items is warranted.