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A module has recently been developed within a mobile application (app) with the purpose of addressing dysfunctional beliefs associated with eating disorders (ED). The aim was to conduct a preliminary efficacy study by analyzing changes after use of the app in a general adult population. A quasi-experimental design was used in which 86 people completed a baseline assessment, and of them, 32 used the app daily for 3 minutes over a period of 15 days and completed the post-treatment assessment. Results before and after use of the app showed a decrease in mean scores for dysfunctional beliefs about perfectionism associated with physical appearance, vulnerability to weight gain, and the importance of thought control, as well as an increase in self-esteem. No significant reduction in eating symptomatology or depressive symptoms was observed. The results suggest that the app could be useful in reducing dysfunctional beliefs associated with ED. [ABSTRACT FROM AUTHOR]

The purpose of this project was to validate the "Personality Belief Questionnaire, Short Form" (PBQ-SF), using a clinical sample (n= 343) and a nonclinical sample (n= 355), with participants between 18 and 60 years of age. Through a confirmatory factorial analysis the factor structure of the nine factor model (schizoid, paranoid, antisocial, narcissistic, histrionic, avoidant, dependent, obsessive compulsive, and aggressive passive), and the structure of the seven factors model (dependent/avoidant, obsessive compulsive, narcissistic, autonomous, paranoid, histrionic, and schizoid) was tested. The model for measuring the belief factor associated with borderline personality was evaluated separately, since it is composed of items included in the other factors. The best adjustment indicators were those in the nine factor model. The internal consistency of all PBQ-SF scales was good (between. 71 and .90). The clinical sample obtained higher scores than the nonclinical sample in all dysfunctional beliefs, except for the antisocial and narcissistic scales. Men scored higher on the paranoid, antisocial, and narcissistic scales. [ABSTRACT FROM AUTHOR]