title: Reliability and validity testing of the physical resilience measure.
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.
  
  
  CONCLUSIONS
  Future use of the Physical Resilience Scale should consider adding more challenging items to better differentiate those particularly high in physical resilience.
authors.affiliation: Adult and Organizational Health, University of Maryland School of Nursing, Baltimore, MD 21201, USA. resnick@son.umaryland.edu
authors.forename: Barbara
authors.initials: B
authors.lastname: Resnick
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Galik
authors.forename: Susan
authors.initials: S
authors.lastname: Dorsey
authors.forename: Ann
authors.initials: A
authors.lastname: Scheve
authors.forename: Susan
authors.initials: S
authors.lastname: Gutkin
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003866:Depressive Disorder / Q000523:psychology*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D011594:Psychometrics; D015203:Reproducibility of Results; D055500:Resilience, Psychological; D020377:Self Efficacy