Fig. 1

The Mediating Role of Intolerance of Uncertainty in the Relationship Between Post-Traumatic Growth and Psychological Inflexibility (Model 4) Accordingly. when the indirect effect of the mediating variable, (M) within the 95% confidence interval was evaluated, the results for intolerance of uncertainty were BootLLCI intolerance of uncertainty = -0.402 and BootULCI intolerance of uncertainty = -0.183. Considering that the lower, (BootLLCI) and upper, (BootULCI) bounds of the bootstrap results fall within the 95% confidence interval and both are below zero, it can be concluded that intolerance of uncertainty has a statistically significant mediating role in the proposed model. When the fully standardized effect size of the mediation role is examined, (K2 intolerance of uncertainty = -0.291), intolerance of uncertainty was found to have a partial mediating role. The schematic representation of Model 4 is presented in Fig. 1.