TY - JOUR

T1 - Mobility-related participation and user satisfaction

T2 - Construct validity in the context of powered wheelchair use

AU - Brandt, Aase

AU - Kreiner, Svend

AU - Iwarsson, Susanne

PY - 2010

Y1 - 2010

N2 - Purpose. The aim of this study was to investigate the constructs of mobility-related participation and user satisfaction, two important outcome dimensions within praxis and research on mobility device interventions. Method. To fulfill this aim, validity and reliability of a 12-item scale on mobility-related participation and a 10-item scale on user satisfaction were examined in the context of older people’s powered wheelchair use (n¼111). Rasch analysis and correlation analysis were applied. Results. Construct validity of both scales was confirmed.The reliability of the user satisfaction scale was good,while themobilityrelated participation scalewas not optimal in discriminating between personswith a high degree ofmobility-related participation. It was demonstrated that mobility-related participation and user satisfaction are separate, not related constructs. Conclusions. It can be concluded that the investigated mobility-related participation and user satisfaction constructs appear to be valid. Since the two constructs are not related and both yield important information, both dimensions should be evaluated in outcomes research and praxis targeting powered wheelchair interventions. Reliability problems of the mobilityrelated participation scale indicate the complexity of this construct. The results have been instrumental in the development of a new scale for measuring mobility-related participation ‘The NOMO 1.0’.

AB - Purpose. The aim of this study was to investigate the constructs of mobility-related participation and user satisfaction, two important outcome dimensions within praxis and research on mobility device interventions. Method. To fulfill this aim, validity and reliability of a 12-item scale on mobility-related participation and a 10-item scale on user satisfaction were examined in the context of older people’s powered wheelchair use (n¼111). Rasch analysis and correlation analysis were applied. Results. Construct validity of both scales was confirmed.The reliability of the user satisfaction scale was good,while themobilityrelated participation scalewas not optimal in discriminating between personswith a high degree ofmobility-related participation. It was demonstrated that mobility-related participation and user satisfaction are separate, not related constructs. Conclusions. It can be concluded that the investigated mobility-related participation and user satisfaction constructs appear to be valid. Since the two constructs are not related and both yield important information, both dimensions should be evaluated in outcomes research and praxis targeting powered wheelchair interventions. Reliability problems of the mobilityrelated participation scale indicate the complexity of this construct. The results have been instrumental in the development of a new scale for measuring mobility-related participation ‘The NOMO 1.0’.

U2 - 10.3109/17483100903394636

DO - 10.3109/17483100903394636

M3 - Journal article

C2 - 20131976

VL - 5

SP - 305

EP - 313

JO - Disability and Rehabilitation

JF - Disability and Rehabilitation

SN - 0963-8288

IS - 5

ER -