ArticlePsicologia, reflexao e critica : revista semestral do Departamento de Psicologia da UFRGS2026
Confirmatory factor analysis of the original posttraumatic growth inventory (PTCI) in a cardiac surgery sample.
Article in Psicologia, reflexao e critica : revista semestral do Departamento de Psicologia da UFRGS, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThis study aimed to evaluate the psychometric properties of the Post-Traumatic Growth Inventory (ICPT), a 21-item version adapted to Portuguese.
methodsThe sample consisted of 318 patients who underwent coronary artery bypass graft surgery between October 2022 and March 2024. Participants completed a socio-demographic and clinical questionnaire, the Self-Perceived Stress Scale (EPS-10).
resultsThe majority were male (77%), with a mean age of 64.75 years (SD = 9.53), White (93%), and married (70%). Most participants reported experiencing stress (72%) and had an average post-traumatic growth score of 73.9. Confirmatory factor analysis (CFA) supported the original five-factor model of the 21-item scale. Internal consistency estimates ranged from 0.56 to 0.81, with an overall Cronbach's alpha of 0.90, indicating acceptable reliability. Structural equation modeling further confirmed the factor structure, yielding RMSEA = 0.046, TLI = 0.992, CFI = 0.993, and SRMR = 0.065, demonstrating good model fit.
conclusionOverall, the results provide empirical support for the factor structure and reliability of the 21-item version of the ICPT, indicating its suitability for research in the context of chronic diseases.
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