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. 2023 Sep 23;32(1):83-90.
doi: 10.1123/japa.2023-0017. Print 2024 Feb 1.

A Descriptive Study Using Rasch Analysis and Hypothesis Testing to Evaluate the Psychometric Properties of the UMOVE Mobility Screen Tested With Hospitalized Older Adults

Barbara Resnick  1 , Marie Boltz  2 , Chris L Wells  1 , Elizabeth Galik  1 , Ashley Kuzmik  2 , Rachel McPherson  1
Affiliations

A Descriptive Study Using Rasch Analysis and Hypothesis Testing to Evaluate the Psychometric Properties of the UMOVE Mobility Screen Tested With Hospitalized Older Adults

Barbara Resnick et al. J Aging Phys Act. .

Abstract

The purpose of this study was to test the reliability and validity of the UMOVE Mobility Screen in older adults living with dementia using a Rasch analysis and hypothesis testing. The UMOVE Mobility Screen (UMOVE) focuses on nine activities: following commands, muscle strength, and basic functional mobility tasks. Trained evaluators completed assessments on 244 patients, the majority of whom were female (62%), and White (71%). Based on Rasch Analysis, there was evidence of good item and person reliability (indexes > 0.80), good INFIT statistics, and only one item fitting the model based on OUTFIT statistics. Validity was supported based on hypothesis testing. There was no evidence of Differential Item Functioning between races and genders. Item mapping raised concerns about the spread of the items across the full spectrum of mobility assessed in the UMOVE Mobility Screen. Future testing should consider adding some easier and some more difficult items.

Keywords: acute care; dementia; function; measurement; screening.

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Figures

Figure 1:
Figure 1:. UMove Mobility Levels
• Mobility Level directs evaluator to: • Method to engage patient with OOB activity • When to use lift equipment • Develop an appropriate mobility care plan
See this image and copyright information in PMC

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