Martine Poirier

Program and implementation effects of a cognitive-behavioural intervention to prevent depression among adolescents at risk of school dropout exhibiting high depressive symptoms

The outcome evaluation of Pare-Chocs, a school-based cognitive-behavioural (CB) prevention program for adolescent depression, was conducted with 53 adolescents at risk of school dropout and exhibiting high depressive symptoms using a theory-driven evaluation model. Our results show a significant relationship between the intervention and proximal variables: Experimental-group students presented less cognitive distortions and better problem-solving strategies at post-treatment and follow-up. Greater participation intensity predicts less cognitive distortions and better problem-solving strategies at follow-up. Moreover, less cognitive distortions at post-treatment and follow-up are linked to less depressive symptoms. These promising results encourage future evaluative research on school dropout prevention programs linked with at-risk students’ characteristics. For practitioners, they suggest that the implementation of a CB prevention program for depressive symptoms in school settings could lead to decrease depression risk factors and improve protective factors among youth at risk of school dropout.

The Role of Academic Skills in the Evolution of Conduct Problems and Depressive Symptoms Among Children With and Without Early Clinically Significant Conduct Problems

Youth with conduct problems present frequently depressive symptoms. Academic skills are thought to be a mediating variable by which conduct problems could lead to depressive symptoms. No studies have longitudinally compared this model among school-aged boys and girls with different levels of conduct problems. Cascade models were tested to examine the relations between conduct problems, depressive symptoms, and academic skills over a 3-year period, and whether the severity of conduct problems and gender moderated these associations. Participants were 381 children presenting early clinically significant conduct problems (44.9% female) and 363 children with low levels of conduct problems (48.8% female). While results did not show any cascade or indirect associations, they revealed different direct links between conduct problems or depressive symptoms and academic skills in the four groups. These findings suggest that conduct problems severity and gender differences should be considered in treatment planning.

Trajectories of internalizing problems during the transition to adolescence in children with and without conduct problems

Children with conduct problems are at greater risk for internalizing problems. The objectives of this study were to (1) examine trajectories of internalizing problems among children with and without clinically significant conduct problems during the transition to adolescence; and (2) identify how academic achievement, peer rejection, parent socioeconomic status, maternal distress, parental warmth, child temperament, and receptive verbal functioning explained differences between the two groups. Children with conduct problems (N = 388, 45% girls) and a comparison sample without conduct problems (N = 299, 52% girls) were recruited from Quebec, Canada, when they were between the ages of 7 and 10 years, and were followed across 4 years. Mothers and teachers provided information on internalizing problems each year. Having clinically significant conduct problems was associated with higher initial levels of internalizing problems according to mothers and teachers, but not with changes in internalizing problems over time. With regards to teacher ratings, academic achievement, peer rejection, and negative emotionality partially explained differences in internalizing problems for youth with and without conduct problems. For mother ratings, maternal distress, negative emotionality, and peer rejection completely explained the association for girls, and partially explained the association for boys. Findings supported a multi-rater approach for understanding risk for internalizing problems among children with and without conduct problems. In particular, they highlight the importance of differences across context for understanding factors associated with vulnerability to internalizing problems.