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Quadratic relation of posttraumatic growth to PTSD symptom severity (PTSD symptom severity Inventory [PSSI], left figure) and to depression symptom severity (Beck Depression Inventory [BDI], right figure) at 6 months postassault. Gray-shaded areas represent 95% confidence intervals for curvilinear betas; all quadratic relationships were significant, with the exception of the relationship between posttraumatic growth and the BDI in Study 2.
