Develop and Validate a Metacognitive-Cognitive-Behavioral Model for Body Dysmorphic Disorder

The purpose of this study was to develop and validate a metacognitive-cognitive-behavioral model for body dysmorphic disorder. A sample of 800 participants (400 males and 400 females) was selected randomly and questionnaires were administered to them. Structure analysis was used to test the factor structure validity of the metacognitive-cognitive-behavioral model for body dysmorphic disorder. Results of the structure analysis revealed and supported a metacognitive-cognitivebehavioral model for body dysmorphic disorder. Also, the results showed that the model had the best fit to the data and was closely related to the theoretical assumptions. The model presented in this study illustrates a multidimensional approach that the model focuses on the metacognitivecognitive-behavioral dimensions; hence, the model presented in this study is a new explanatory model. The model may prompt future research into body dysmorphic disorder and facilitate clinical treatment and case formulation

Validation of a Classification System for Obsessive-Compulsive and Related Disorders Based on DSM-5

The purpose of this study was to examine whether a broad obsessive-compulsive and related disorders model, which consisted of obsessive-compulsive, hoarding disorder, body dysmorphic, trichotillomania and pathological skin picking, displayed sufficient data fit. On the other hand, we examined whether a reduced obsessive-compulsive and related disorders symptoms model consisting of above mentioned disorders demonstrated superior fit or not. To test the factor structure validity of the classification system of obsessive-compulsive spectrum disorders, we used Confirmatory Factor Analyses (CFA). Result of factor structure analysis revealed and supported an OCSD symptoms dimension that included obsessive-compulsive, hoarding disorder, body dysmorphic, trichotillomania, and pathological skin picking symptoms. Also, results of this study supported the DSM-5 changes

Body image and meta-worry as mediators of body dysmorphic disorder

Objectives: Meta-worry and attitudes towards the body have been largely overlooked as potential risk factors for body dysmorphic disorder (BDD) despite theorizing that a negative body image may play a critical role in the development of this disorder. Participants: The purpose of this study was to evaluate the fit of a theoretical model specifying body image and meta-worry as mediators between cognitive, metacognitive beliefs and body dysmorphic disorder(BDD) in a nonclinical sample of 635 participants (304 male and 331 female). Results: The data supported the model, and meta-worry and body image significantly mediated the relationship between cognitive, metacognitive beliefs and BDD. These findings provide essential preliminary evidence that body image may represent a necessary but not sufficient risk factor for BDD and that treatment for BDD should consider targeting body-related pathology in addition to meta-worry. Conclusion: The model may prompt future research into body dysmorphic disorder