Abstract
Aim of the studyIntolerance of uncertainty (IU) is a transdiagnostic structure that plays an important role in developing and maintaining symptoms of emotional disorders. The current study was aimed to investigate the mediational role of IU and its components in reducing symptoms of emotional disorders.Subject or material and methodsThis was a double-blind randomized clinical trial. Based on the Beck anxiety inventory and Beck depression inventory 26 individuals were selected. They were randomly assigned into two groups of control and treatment (n=13) using random number generator 3.1.v software. The treatment group received 20 one-hour sessions of Unified Protocol (UP) for the transdiagnostic treatment of emotional disorders. Beck depression inventory, the Beck anxiety inventory, and Intolerance of uncertainty scale were performed in pre, post and three months follow-up. Data were analyzed by SPSS-20 software.ResultsAfter controlling the effect of IU, the results of one-way analysis of covariance (ANCOVA) showed a significant reduction in the difference between the two groups (P<0.05); which means that IU can be considered as a mediator of reductions in anxiety and depression in UP. The results of the stepwise regression analysis indicated that prospective IU and inhibitory IU could explain 61.4% and 8.2% of variances in anxiety scores, respectively. In predicting changes in depression score, only inhibitory IU could explain depression variance (43.3%).DiscussionThe best predictor of the changes in the anxiety and depression are, respectively, prospective IU and inhibitory IU.ConclusionsThis study shows that UP may exert its effect by improving different components of IU.
Highlights
Dimensional approach to the psychopathology of emotional disorders have become increasingly widespread in recent decades and transdiagnostic approach is one of them [1] the transdiagnostic conceptualization, an emotional disorder is characterized by the experience of fre-Investigating the mediational role of Intolerance of Uncertainty and its components in reducing 73 quent and intense negative emotions, negative reactivity to intense emotional states, and efforts to withdraw, escape, or avoid emotional experience [2]
After controlling the effect of Intolerance of uncertainty (IU), the results of one-way analysis of covariance (ANCOVA) showed a significant reduction in the difference between the two groups (P
The results of the stepwise regression analysis indicated that prospective IU and inhibitory IU could explain 61.4% and 8.2% of variances in anxiety scores, respectively
Summary
Investigating the mediational role of Intolerance of Uncertainty and its components in reducing 73 quent and intense negative emotions, negative reactivity to intense emotional states (which is associated with diminished sense of control), and efforts to withdraw, escape, or avoid emotional experience [2]. These mainly consist of anxiety and unipolar depressive disorders. It should be noted that uncertainty itself can be considered as a threat which perpetuates anxiety and depression symptoms, as well as exaggerates threat perceptions [11]
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