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Related Experiment Videos

Development of a standardized instrument to assess computer task performance.

Claire Dumont1, Claude Vincent, Barbara Mazer

  • 1Institut de réadaptation en déficience physique de Québec, 525 Boul. Hamel, Québec, Québec, G1M 2S8, Canada. cdumont@irdpq.qc.ca

The American Journal of Occupational Therapy : Official Publication of the American Occupational Therapy Association
|February 9, 2002
PubMed
Summary

The Assessment of Computer Task Performance demonstrates excellent reliability and validity for evaluating computer use in individuals with upper-extremity impairments. This tool aids occupational therapists in assessing computer performance and facilitating access services.

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Area of Science:

  • Occupational therapy
  • Rehabilitation technology
  • Psychometrics

Background:

  • Computer use is integral to daily activities.
  • Individuals with upper-extremity impairments often face challenges with computer access.
  • Standardized assessments are needed to evaluate computer task performance.

Purpose of the Study:

  • To determine the psychometric properties of the Assessment of Computer Task Performance.
  • To evaluate test-retest reliability, internal consistency, construct validity, and group discrimination.
  • To validate a tool for occupational therapists assessing computer performance.

Main Methods:

  • The Assessment of Computer Task Performance, featuring 14 timed tasks, was administered to 24 individuals with upper-extremity impairments and 30 without.

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  • Test-retest reliability was assessed via intraclass correlation coefficients.
  • Internal consistency (Cronbach's alpha), construct validity (factor analysis), and group discrimination (Mann Whitney U Test) were evaluated.

    • Main Results:

    • The assessment demonstrated excellent test-retest reliability and internal consistency.
    • The tool effectively discriminated between individuals with and without upper-extremity impairments.
    • Factor analysis supported the construct validity of the Assessment of Computer Task Performance.

    Conclusions:

    • The Assessment of Computer Task Performance is a reliable and valid tool for occupational therapists.
    • It accurately measures computer performance in individuals with upper-extremity impairments.
    • The assessment can inform the provision of computer access services.