Estudo das propriedades psicométricas da versão em português do Posttraumatic Growth Inventory

• Ano de defesa: 2016
• Autor(a) principal: SIlva, Thiago Loreto Garcia da
• Orientador(a): Kristensen, Christian Haag
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Pontifícia Universidade Católica do Rio Grande do Sul
• Programa de Pós-Graduação: Programa de Pós-Graduação em Psicologia
• Departamento: Faculdade de Psicologia
• País: Brasil
• Palavras-chave em Português: ESTRESSE; TRAUMAS PSICOLÓGICOS; TRANSTORNO DE ESTRESSE PÓS-TRAUMÁTICO; PSICOMETRIA; PSICOLOGIA
• Área do conhecimento CNPq: CIENCIAS HUMANAS::PSICOLOGIA
• Link de acesso: http://tede2.pucrs.br/tede2/handle/tede/6685

Post-traumatic growth (PTG) is one of the concepts used to assess positive psychological changes after the experience of a traumatic event. The PTG is defined as a result of coping with a major life crisis or traumatic event and can be achieved as a result of the efforts to give some sense to this traumatic event (eg, rumination) and cognitive effort to reorganize beliefs and core assumptions shaken by the stressor. The main international scales used to assess this phenomenon does not yet have a version in Brazilian Portuguese. This study aimed to translate and adapt to the Brazilian context the Post-Traumatic Growth Inventory (PTGI), Core Beliefs Inventory (CBI), and Event-Related Rumination Inventory (ERRI). In addition, it aimed to analyze the psychometric properties of PTGI, including, factor structure, reliability (internal consistency), construct and convergent validity measures in a sample of non-clinic, Brazilian university student. Adaptation procedures included translation, back-translation, evaluation by a committee of experts, and pilot testing in the target population. All items of the three instruments had good content validity index after evaluation by four experts and three reformulations. The back-translation of the final version also demonstrated that all versions of Brazilian Portuguese convey the same meaning as the original version in English. The PTGI validation study included 300 college students with a mean age of 23.9 (SD = 6.8) and 65.3% female. Besides the PTGI, the following instruments were used: sociodemographic questionnaire, BDI-II to assess depressive symptoms, LEC-5 for assessment of traumatic events, PCL-C for evaluation of post-traumatic symptoms and the MR-25 - reduced markers for personality assessment. The version of 18 items of the Brazilian PTGI (PTGI-B) showed good reliability with Chronbach Aplha (α = 0.91). All subscales also showed a higher than acceptable reliability: Relations with others = 0.84, = 0.83 New Possibilities, Personal Strength = 0.70, = 0.85 Spiritual Changes and Appreciation of Life = 0.81. The Brazilian version of PTGI showed the same structure of five factors of the original instrument. In addition, the reliability of measurements showed a good internal consistency of the measure and its factors. These results provide evidence of psychometric properties of PTGI-B, showing that the scale is a useful tool for psychological assessment of growth experiences. Explore PTG in Latin cultures such as Brazil can contribute to the understanding of PTG construction.