title: Outcomes measurement of a wheelchair intervention.
abstract: OBJECTIVE
  The objective of this study was to collect outcomes data related to a wheelchair intervention using three outcome instruments, and to develop methodological procedures that could be incorporated easily into busy clinical practices.
  
  
  METHODS
  This project used a repeated measures, pre-post research design. Data were collected from 31 clients at an acute rehabilitation hospital in New York, USA. Three outcomes instruments--the Psychosocial Impact of Assistive Devices Scale (PIADS), the Occupational Therapy Functional Assessment Compilation Tool (OTFACT), and Assistive Technology Outcome Measure (ATOM)--were administered over a 30-month period before and after a service delivery intervention at one month and 12 months.
  
  
  RESULTS
  Results showed that correlations between different measures were low, but increased over time. The ATOM and one domain of the OTFACT were most sensitive to the intervention over time, but where ATOM values increased over time, OTFACT values decreased. PIADS scores did not exhibit significant differences over time.
  
  
  CONCLUSIONS
  The significance of this study lies in its methodological implications for future outcomes research. The complexities inherent in measuring interventions are discussed in terms of an instrument's constructs, research question(s), study design, subject population, and the practical considerations of collecting outcomes data within busy clinical practices.
authors.affiliation: Center for Assistive Technology & Environmental Access, Georgia Institute of Technology, Atlanta, Georgia 30318, USA. frances.harris@coa.gatech.edu
authors.forename: Frances
authors.initials: F
authors.lastname: Harris
authors.forename: Stephen
authors.initials: S
authors.lastname: Sprigle
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006233:Persons with Disabilities / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D011788:Quality of Life; D011795:Surveys and Questionnaires; D014910:Wheelchairs / Q000523:psychology