Measurement properties of the WheelCon for powered wheelchair users

Disabil Rehabil Assist Technol. 2018 Oct;13(7):614-619. doi: 10.1080/17483107.2017.1358301. Epub 2017 Jul 29.


Purpose: To evaluate the measurement properties of the Wheelchair Use Confidence Scale for power wheelchair users (WheelCon-P).

Design: One-month test-retest design, using data from a longitudinal study of power wheelchair use.

Participants: Volunteer sample of 73 community dwelling, older adult experienced power wheelchair users who had a mean age of 60.5 ± 7.1 years.

Methods: Participants completed the WheelCon-P twice to assess retest reliability. Concurrent validity was assessed by evaluating hypothesized relationships between the WheelCon-P and relevant variables.

Results: The baseline mean (standard deviation) WheelCon-P score was 78.8 ± 14.5. Cronbach's α was 0.92. The one-month test-retest intraclass correlation coefficient was 0.85 (CI 0.77-0.90). Correlations ranging from r = 0.26 (social support) to r = 0.49 (wheelchair skills) were found between the WheelCon-P and the validation outcome measures.

Conclusion: The WheelCon-P has high internal consistency, strong retest reliability and evidence supporting its validity. Although further work is needed, the WheelCon-P may serve as a useful clinical and research tool for measuring power wheelchair confidence. Implications for rehabilitation The WheelCon-P is a reliable and valid outcome measure for assessing wheelchair confidence. This tool can be used to identify individuals with low power wheelchair confidence who require a confidence-enhancing intervention.

Keywords: Wheelchairs; confidence; outcome assessment (health care); rehabilitation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Disabled Persons / rehabilitation*
  • Female
  • Humans
  • Independent Living
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Motor Skills
  • Physical Therapy Modalities / standards*
  • Reproducibility of Results
  • Socioeconomic Factors
  • Wheelchairs*

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