Psychometric properties of the Generalized Anxiety Disorder Inventory (GADI) for the assessment of Generalized Anxiety Disorder in Mexico

Anxiety disorders are the most frequent mental disorders and they represent an important health problem in Mexico, so it is important to detect them with the use of valid assessment instruments. The goal of our study is to establish several psychometric properties of the GADI (Generalized Anxiety Disorder Inventory) in college students of Morelia (Mexico). Material and methods: The GADI and other scales were applied to assess the presence of anxiety, pathological worry, depressive symptomatology and gaudiebility in a sample of university students. A confirmatory factor analysis was applied. Results: Our results corroborate the three factor structure of the original version and other studies. We observed a high internal consistency of the total scale ($\alpha$ =.928) and also was adequate for the 3 factors. Regarding the evidence of concurrent validity, the correlations between the GADI scale and the other scales were as expected. High test-retest reliability was also observed in a period of four weeks. Conclusions: the empirical data indicate that the GADI presents satisfactory validity and reliability for college population. Likewise, descriptive data are offered in the university population of Morelia (Mexico).