Green, Kimberly THayward, Laura CWilliams, Ann MDennis, Paul ABryan, Brandon CTaber, Katherine HMid-Atlantic Mental Illness Research, Education and Clinical Center WorkgroupDavidson, Jonathan RTBeckham, Jean CCalhoun, Patrick S2016-12-012014-08https://hdl.handle.net/10161/13044The present study examined the structural validity of the 25-item Connor-Davidson Resilience Scale (CD-RISC) in a large sample of U.S. veterans with military service since September 11, 2001. Participants (N = 1,981) completed the 25-item CD-RISC, a structured clinical interview and a self-report questionnaire assessing psychiatric symptoms. The study sample was randomly divided into two subsamples: an initial sample (Sample 1: n = 990) and a replication sample (Sample 2: n = 991). Findings derived from exploratory factor analysis (EFA) did not support the five-factor analytic structure as initially suggested in Connor and Davidson's instrument validation study. Although parallel analyses indicated a two-factor structural model, we tested one to six factor solutions for best model fit using confirmatory factor analysis. Results supported a two-factor model of resilience, composed of adaptability- (8 items) and self-efficacy-themed (6 items) items; however, only the adaptability-themed factor was found to be consistent with our view of resilience-a factor of protection against the development of psychopathology following trauma exposure. The adaptability-themed factor may be a useful measure of resilience for post-9/11 U.S. military veterans.Connor–Davidson Resilience Scaleexploratory factor analysismilitarypsychometric testingAdaptation, PsychologicalAdultDepressive Disorder, MajorFactor Analysis, StatisticalFemaleHumansInterview, PsychologicalMalePsychometricsReproducibility of ResultsResilience, PsychologicalStress Disorders, Post-TraumaticSurveys and QuestionnairesTerrorismUnited StatesVeteransJournal article1552-3489