Browsing by Author "Ulloa, Valentina G."

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    Mindfulness-based interventions in secondary education : a qualitative systematic review
    (SAGE Publications, 2015) Langer, Álvaro I.; Ulloa, Valentina G.; Cangas, Adolfo J.; Rojas Castillo, María Graciela; Krause Jacob, Mariane
    Con el objetivo de estudiar los efectos de los programas de meditación mindfulness aplicados a adolescentes dentro de sus establecimientos educativos, se llevó a cabo una revisión sistemática cualitativa. Se analizaron 16 estudios publicados en las principales bases de datos. Los resultados muestran que mindfulness, al ser aplicado como estrategia de prevención en contextos educativos, produce cambios significativos en variables: (a) psicológicas (e.g., disminución de sintomatología depresiva); (b) psicosociales (e.g., aumento de habilidades sociales); y (c) fisiológicas (e.g., mejora de la presión sanguínea). No obstante, a pesar que los datos son concluyentes en los parámetros descritos anteriormente, la ausencia de medidas de seguimiento a mediano y largo plazo, sumada a una mínima evaluación de los mecanismos psicológicos involucrados en los procesos de cambio, sugiere interpretar y generalizar los resultados de forma cautelosa.
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    Substance Use, Bullying, and Body Image Disturbances in Adolescents and Young Adults Under the Prism of a 3D Simulation Program: Validation of MySchool4web
    (2016) Langer, Alvaro I.; Manuel Aguilar-Parra, Jose; Ulloa, Valentina G.; Carmona-Torres, Jose A.; Cangas, Adolfo J.
    Background:The use of virtual reality or three-dimensional (3D) simulation programs has been explored in different mental health problems and contexts. One of the applications that showed evidence of a suitable assessment for behavioral and emotional problems in adolescents is the 3D questionnaire called MySchool4web. The aim of this work was to analyze the psychometric properties of a tailored version of MySchool4web.Materials and Methods:A correlational, nonexperimental, cross-sectional study was carried out. The participants were 668 secondary students from schools in Santiago, Chile with a mean age of 15.74 years. Adolescents completed MySchool4web in the informatics classroom of each school.Results:Results indicated that two of the items had to be removed, and a three-factor solution was found representing the dimensions substance use, bullying, and body image. This final model of 10 items showed acceptable internal consistency per factor, and its scores were significantly associated with other related measures in nine items.Conclusions:These outcomes suggest that this version of MySchool4web is a reliable and valid measure of a 3D instrument for the screening of risky behaviors and emotional problems in adolescents and young adults in a school context.