Browsing by Author "Tedeschi, Richard G."
Now showing 1 - 5 of 5
Results Per Page
Sort Options
- An item-level analysis of the Posttraumatic Stress Disorder Checklist and the Posttraumatic Growth Inventory and Its associations with challenge to core beliefs and ruminationPublication . Ramos, Catarina; Leal, Isabel Maria Pereira; Costa, Pedro Alexandre; Tapadinhas, Ana Rosa; Tedeschi, Richard G.Background: Previous studies have found that rumination and challenge to core beliefs may have a predictive effect on Posttraumatic Stress Disorder (PTSD) and Posttraumatic Growth (PTG) among different samples. In addition, there is some evidence that these variables have different effects on PTSD and PTG, although the latter construct has been the target of a larger body of research and theoretical models. The main objective of the current study is to examine the effect of challenge to core beliefs, intrusive rumination, and deliberate rumination on PTSD and PTG, through an item-level analyses. Methods: The sample was composed of 205 Portuguese women who had been given a breast cancer diagnosis (M = 54.32, SD = 10.05), and who completed the following self-administered questionnaires: the Posttraumatic Stress Disorder Checklist (PCL-C); the Posttraumatic Growth Inventory (PTGI); the Core Beliefs Inventory; and the Event Related Rumination Inventory. Two multivariate multiple regression analyses, using each item of the PCL-C and the PTGI as dependent variables, were conducted. Results: The results demonstrated that challenges to core beliefs predict 17 of the 21 PTGI items and 12 of the 17 PCL-C items. All but one item of the PCL-C are predicted by intrusive rumination, while the variance of only 4 items of the PTGI are explained by deliberate rumination. Conclusion: These findings indicate that women with breast cancer who tend to display higher levels of intrusive rumination are more likely to report PTSD symptoms, and that an examination of one's core beliefs is predictor of both positive and negative outcomes. In spite of the proven effect of challenge to core beliefs on both variables, this study suggests that this effect has only a minor influence on PTSD, in addition to confirming its major impact on PTG.
- Posttraumatic growth (PTG) and posttraumatic depreciation (PTD) across ten countries: Global validation of the PTG-PTD theoretical modelPublication . Taku, Kanako; Tedeschi, Richard G.; Shakespeare-Finch, Jane; Krosch, Daniel J; David, Georgina; Kehl, Doris; Grunwald, Selina; Romeo, Annunziata; Di Somma, Marialaura; Kamibeppu, Kiyoko; Soejima, Takafumi; Hiraki, Kohichi; Volgin, Rebekah; Dhakal, Sandesh; Zięba, Mariusz; Ramos, Catarina; Nunes, Romina; Leal, Isabel Maria Pereira; Gouveia, Patrícia; Silva, Carolina C.; Chaves, Pamela Núñez Del Prado; Zavala-Oseguera, Claudia; Paz, Andrea; Durak, Emre; Oshio, Atsushi; Canevello, Amy; Cann, Arnie; Calhoun, Lawrence G.
- Protocol for the psychotherapeutic group intervention for facilitating posttraumatic growth in nonmetastatic breast cancer patientsPublication . Ramos, Catarina; Leal, Isabel Pereira; Tedeschi, Richard G.Breast cancer can be perceived as a traumatic event with disturbing effects on psychological domains such as depression, anxiety, and Posttraumatic Stress Disorder. In contrast, growing evidence has shown that posttraumatic growth can occur as a result of coping with breast cancer. Challenging the assumptive world, deliberate rumination, and emotional disclosure are recognized as strong predictors of posttraumatic growth. Group interventions may also increase social support, distress disclosure, and posttraumatic growth. The aim of this study is to evaluate how group-based interventions can facilitate posttraumatic growth and promote improved psychosocial adjustment to breast cancer. This article describes the study protocol and the applied research methods.
- The effectiveness of a group intervention to facilitate posttraumatic growth among women with breast cancerPublication . Ramos, Catarina; Costa, Pedro Alexandre; Rudnicki, Tânia; Maroco, Ana Lúcia; Leal, Isabel; Guimarães, Raquel; Fougo, JL; Tedeschi, Richard G.Objective: This longitudinal study tested the effectiveness of a group intervention designed to facilitate posttraumatic growth (PTG). Methods: Sample consisted of 205 women diagnosed with non‐metastatic breast cancer who were either assigned to an intervention group (n = 58) or to a control group (n = 147). PTG, challenge to core beliefs, and rumination (intrusive and deliberate) were assessed at baseline (T1), at 6 months (T2), and at 12 months after baseline (T3). Results: Results from the Latent Growth Modeling suggested that participants from the intervention group have higher levels of PTG. The challenge to core beliefs and the intrusive rumination have a moderator role on PTG, since group intervention is also linked to the enhancement of both variables. Conclusions: Participation in the intervention group increase PTG. Challenge to core beliefs and intrusive rumination are improved by group intervention, which to a certain extent facilitate PTG.
- The posttraumatic growth inventory: Factor structure and invariance in a sample ofbreast cancer patients and in a non-clinical samplePublication . Ramos, Catarina; Leal, Isabel Pereira; Maroco, Ana Lúcia; Tedeschi, Richard G.The Posttraumatic Growth Inventory (PTGI) is frequently used to assess positive changes following a traumatic event. The aim of the study is to examine the factor structure and the latent mean invariance of PTGI. A sample of 205 (M age = 54.3, SD = 10.1) women diagnosed with breast cancer and 456 (M age = 34.9, SD = 12.5) adults who had experienced a range of adverse life events were recruited to complete the PTGI and a socio-demographic questionnaire. We use Confirmatory Factor Analysis (CFA) to test the factor-structure and multi-sample CFA to examine the invariance of the PTGI between the two groups. The goodness of fit for the five-factor model is satisfactory for breast cancer sample (χ2(175) = 396.265; CFI = .884; NIF = .813; RMSEA [90% CI] = .079 [.068, .089]), and good for non-clinical sample (χ2(172) = 574.329; CFI = .931; NIF = .905; RMSEA [90% CI] = .072 [.065, .078]). The results of multi-sample CFA show that the model fit indices of the unconstrained model are equal but the model that uses constrained factor loadings is not invariant across groups. The findings provide support for the original five-factor structure and for the multidimensional nature of posttraumatic growth (PTG). Regarding invariance between both samples, the factor structure of PTGI and other parameters (i.e., factor loadings, variances, and co-variances) are not invariant across the sample of breast cancer patients and the non-clinical sample.