Most studies on grit examined participants who were more successful than others and found grit was a significant factor. There was a gap in the literature for participants with extreme failure, first-time-detained juvenile delinquents, and the impact of grit. The purpose of the present study was an explanatory and exploratory study of grit and the…

The objective of this study was to analyse the relations between the function of openness to the world, family functioning and child behaviour. In order to do that, a quantitative research was conducted with 171 biparental families from the South Region of Brazil, with children from four to six years of age. Two association hypotheses were…

Little is known about their stability and the factors that influence their persistence or change over the life-course. To address this, we use data from 158 participants from the Special Needs and Autism Project cohort studied at three time-points from 12 to 23 years. We used latent growth models to study the role of child, family, and contextual…

Background: Psychiatric problems are common in autism spectrum disorders (ASDs), but the reasons are poorly understood. We use a longitudinal population-representative cohort to examine for the first time the persistence of psychiatric problems and to identify risk factors for their occurrence and stability. Methods: Eighty-one 16-year olds (75…

Objective: To examine patterns and predictors of trends in "DSM-IV" serious emotional disturbance (SED) among youths exposed to Hurricane Katrina. Method: A probability sample of adult pre-hurricane residents of the areas affected by Katrina completed baseline and follow-up telephone surveys 18 to 27 months post-hurricane and 12 to 18…