Estructura interna y confiabilidad del BDI (Beck Depression Inventory) en universitarios de Michoacán (México)

espanolLos trastornos depresivos generan importante discapacidad y son de los mas prevalentes en la actualidad (Organizacion Mundial de la Salud, 2015). Por ello, es necesario disponer de instrumentos psicologicos para detectar dichos trastornos. Una de las escalas mas utilizada es el BDI (Beck Depression Inventory), y su primera version es de uso gratuito. En este trabajo se estudio la estructura y la consistencia internas de la escala BDI (Beck, Rush, Shaw y Emery, 1979) en poblacion universitaria de Michoacan (Mexico). Se aplico la escala BDI a 1190 universitarios con edades comprendidas entre 17 y 38 anos (M = 18.78, DE = 1.72) y la mayoria fueron mujeres (n = 801, 67.3%). Se aplico un analisis de Componentes Principales, cuyos resultados sugieren una estructura de dos factores, corroborado por un Analisis Factorial Confirmatorio (c2/gl = 1.85; NFI =.910; CFI =.956; RMSEA =.027). Se observo una elevada consistencia interna de la escala total (α = .898) y tambien resulto adecuada para los 2 factores (α = .866, α = .701). Los resultados indican que el BDI es adecuado para aplicarse a poblacion universitaria en Michoacan. Asimismo, se ofrecen datos descriptivos en poblacion universitaria de Michoacan (Mexico). No se observo relacion entre la puntuacion total de la escala y la edad, pero si que la media de las mujeres fue superior a la mostrada por los varones. Destaca que hasta un 13.3% de la muestra puede cumplir criterios de depresion. EnglishDepressive disorders generate significant disability and are among the most prevalent at present (Organizacion Mundial de la Salud, 2015). Therefore, it is necessary to have psychological instruments to detect these disorders. One of the most used scales is the BDI (Beck Depression Inventory), in its first version is free. In this work we studied the internal structure and reliability of the BDI scale (Beck, Rush, Shaw and Emery, 1979) in university population of Michoacan (Mexico). It was applied the BDI scale to 1190 university students aged between 17 and 38 years (M = 18.78, SD = 1.72) and the majority were women (n = 801, 67.3%). A Principal component analysis was applied, our results suggest a structure of two factors, corroborated by a Confirmatory Factor Analysis (c2/df = 1.85; NFI = .910; CFI = .956; RMSEA =.027). A high reliability of the total scale was observed (α = .898) and it was also adequate for the 2 factors (α = .866, α = .701). The results indicate that the BDI is adequate to apply to the university population in Michoacan. Descriptive data are also offered in the university population of Michoacan (Mexico). No relationship was observed between the total score of the scale and age, but the mean of the women was higher than that shown by the men. Stresses that up to 13.3% of the sample can meet criteria of depression.