Original Paper 55 Development and Investigation of a Cognitive-Metacognitive Behavioral Model: An Explanation for Hypochondria Disorder Amir Mohsen Rahnejat1, Mehdi Rabiei2, Vahid Donyavi3, Hasan Shahmiri3 1Department of Clinical Psychology, AJA University of Medical Science, Tehran, Iran. 2Department of Clinical Psychology, Baqiyatallah University of Medical Sciences, Tehran, Iran 3Department of Psychiatry, AJA University of Medical Science, Tehran, Iran Submitted: 18 July 2017 Accepted: 07 November 2017 Corresponding Author: Amir Mohsen Rahnejat, Int J Behav Sci. 2017; 11(2): 55-60 Department of Clinical Psychology, AJA University of Medical Science, Tehran, Iran E-mail:
[email protected] Abstract Introduction: Hypochondria is a prevalent disorder which is resistant to diagnosis and treatment. The present study has aimed to develop and validate a new behavioral cognitive-metacognitive model, which explains the hypochondria disorder. Methods: The present research used a descriptive and correlational research method with a structural equations design. In the current study, a comprehensive and detailed definition of hypochondria disorder was suggested and then the conceptual model was proposed. Finally, the model developed with the help of structural equations was tested through the AMOS Graphic software. Results: Results of the structural equation model indicated that the behavioral cognitive-metacognitive model is capable of explaining the hypochondria disorder. Moreover, the results of the general fit indexes of the structural equations model suggested that the developed model has the goodness of fit indexes with the sample data and is closely related with theoretical hypotheses. Conclusion: The suggested model in this study had multidimensional focuses on all behavioral- cognitive and metacognitive aspects. Furthermore, the model considered all the three dimensions to be in an interacting relationship (it did not consider them to be separate or conflicting concepts).Therefore, it was considered to be a novel explanatory model.