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Clinimetric Evaluation Of The Physical Mobility Scale Supports Clinicians And Researchers In Residential Aged Care, Anna Barker, Jennifer Nitz, Nancy Low Choy, Terry Haines
Clinimetric Evaluation Of The Physical Mobility Scale Supports Clinicians And Researchers In Residential Aged Care, Anna Barker, Jennifer Nitz, Nancy Low Choy, Terry Haines
Nancy Low Choy
Objective
To investigate the interrater agreement and the internal construct validity of the Physical Mobility Scale, a tool routinely used to assess mobility of people living in residential aged care.
Design
Prospective, multicenter, external validation study.
Setting
Nine residential aged care facilities in Australia.
Participants
Residents (N=186). Phase 1 cohort (99 residents; mean age, 85.22±5.1y); phase 2 cohort (87 residents; mean age, 81.59±10.69y).
Interventions
Not applicable.
Main Outcome Measures
Kappa statistics, minimal detectable change (MDC90) scores, and Bland-Altman plots were used to assess interrater agreement. Scale unidimensionality, item hierarchy, and person separation were examined with Rasch analysis for both cohorts. …