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Multicenter Study
. 2011 Oct;51(5):643-52.
doi: 10.1093/geront/gnr016. Epub 2011 Mar 14.

Reliability and validity testing of the physical resilience measure

Barbara Resnick  1 , Elizabeth Galik, Susan Dorsey, Ann Scheve, Susan Gutkin
Affiliations
Multicenter Study

Reliability and validity testing of the physical resilience measure

Barbara Resnick et al. Gerontologist. 2011 Oct.

Abstract

Objective: The purpose of this study was to test reliability and validity of the Physical Resilience Scale.

Methods: A single-group repeated measure design was used and 130 older adults from three different housing sites participated. Participants completed the Physical Resilience Scale, Hardy-Gill Resilience Scale, 14-item Resilience Scale, 5-item Geriatric Depression Scale, and the Yale Physical Activity Survey at baseline and again 2 weeks later.

Results: There was evidence of validity of the Physical Resilience Scale based on model testing using a Rasch Analysis and significant correlations with commonly used general resilience measures. Evidence of reliability was supported based on a Separation Index and alpha coefficient of .89 and test-retest reliability with correlations between testing times of .73.

Discussion: Future use of the Physical Resilience Scale should consider adding more challenging items to better differentiate those particularly high in physical resilience.

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