Psychometrics of the Physical Resilience Scale in Older Adults Living with Dementia: Proxy Responses

Abstract

Objectives: The purpose of this study was to determine if proxies can complete the Physical Resilience Scale for older adults living with dementia. Methods: This was a descriptive study using Rasch analysis and baseline data from the Function Focused Care for Acute Care Using the Evidence Integration Triangle trial. The first 240 patients living with dementia were included in this analysis. Results: There was evidence of reliability based on person and item separation index. There was no evidence of Differential Item Functioning (DIF) between genders and a DIF by race on Item 7. Validity was supported based on items fitting the model with the exception of one item, and a significant relationship between physical resilience and pain and function. Discussion: There is some evidence that the Physical Resilience Scale is reliable and valid when completed by proxy reports. Future use should remove one of the items due to redundancy.

Psychometric Properties of the Resilience Scale in Older Adults Post-Hip Fracture

“…In other words, the measure was invariant across gender. These findings are consistent with previous research indicating no differences in resilience measures by gender (López-Pina et al, 2016; Papini et al, 2021; Resnick et al, 2022). Future research should consider including more heterogeneous samples of individuals based on race and ethnicity and comparing racial and ethnic groups for invariance as prior research suggested that there were differences in resilience based on race (Hu et al, 2019; Resnick et al, 2022).…”

Measuring Psychological Resilience in Aging: Findings From the Health and Retirement Study and National Longitudinal Study of Adolescent to Adult Health

“…Although personality characteristics fostering resilience, such as optimism, are viewed as more “trait-like,” scholars note that the development and maintenance of PR early and throughout the life course is supported by financial, family, community, and social resources and investments ( Levine, 2003 ). As research on resilience has evolved, the importance of resilience in aging and health processes has gained increased attention ( Höltge et al, 2020 ; Resnick et al, 2023 ; Ryff et al, 1998 ). Scholars argue that greater understanding of resilience across adulthood is especially important for how we evaluate and understand health processes in later life ( Ryff et al, 1998 ).…”