Is the goal attainment scale a suitable outcome measure for use with individuals with complex seating needs?

Background: Wheelchair and seating provision is a basic human need for individuals with restricted mobility, to maximise occupational performance and participation. Outcome measures are essential in measuring the effectiveness of interventions. As part of a larger study, the goal attainment scale (GAS) was identified by the clinical team at SeatTech as a measure requiring research. Objectives: The aim of this study was to evaluate GAS as an outcome measure for use with individuals with complex seating needs. Methods: Qualitative single case study. Recruitment from a convenience sample at SeatTech. Data collected in three stages before, during and 10 days after the wheelchair issue day, to evaluate the impact of time on goal attainment. Use of semi-structured interviews, observation and GAS. Field notes were taken and later analysed. Ethics was obtained through Enable Ireland, consent gained and pseudonyms used. Results: GAS enabled collaborative goal setting. GAS was flexible and individualised goal were set in relation to pain reduction, posture and independence despite complexity. Weighting, defining outcomes and scoring added objectivity and sensitivity to change. The importance of a follow up period was highlighted as the participant was unable to attain goals until he had the opportunity for participation in his environment. Conclusion: Outcome measurement is an essential part of seating and wheelchair provision in ensuring optimal outcomes. Overall GAS proved to be beneficial. However as no one outcome measure captures everything it should be considered a welcome addition but not a replacement to the interview and assessment already in place in this context.