The validity, reliability, and responsiveness of the modified Iowa Level of Assistance scale in hospitalized older adults in subacute care

AbstractObjective: The objective of this study was to investigate the psychometric properties of the Modified Iowa Level of Assistance scale in hospitalized older adults in subacute care.Design: A cohort, measurement-focused study.Participants and setting: Fifty-eight older adults, aged 65 years and older, were recruited from a subacute rehabilitation hospital.Methods: Inter-rater reliability was established by having two physiotherapists independently assess each participant within 24-h of each other. Construct validity was established using “known-groups” validity, while concurrent validity was also examined by correlating modified Iowa Level of Assistance scores with the Elderly Mobility Scale. Responsiveness was assessed by examining the difference in modified Iowa Level of Assistance scores from admission to discharge.Results: The mean age of participants was 82.8 years (SD 7.5; range 68–97). The modified Iowa Level of Assistance scale was found to be reliable, valid, and responsive in this sample of...