Reliability and validity of Assistive Technology Outcome Measure (ATOM) version 2.0 for adults with physical disability using wheelchairs
Dharne, Medha Gopal
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The assistive technology field needs device-specific outcome instruments to measure the usability, effectiveness, and impact of particular classes of assistive devices. The Assistive Technology Outcome Measure (ATOM) is a new tool that seeks to measure the impact of wheeled mobility systems. The purpose is to establish the reliability and validity of ATOM 2.0 for adults with physical disability using wheelchairs. In phase I eight experts from the wheeled mobility and seating field were recruited to assess the content validity. The content validity index was 0.881. Phase II involved establishing internal consistency, test-retest reliability and convergent validity. Convenience sampling technique was used to recruit 50 adults using wheelchairs. The results indicate that ATOM has strong internal consistency, good test-retest reliability and fair convergent validity. Future research should aim to establish a standardized version of ATOM that can be used clinically with a variety of population in a variety of clinical settings.