1. Objectifs

Intentions :
«The Montreal Longitudinal and Experimental Study (MILES) of low socioeconomic status boys was initiated in 1984 and included a randomised prevention programme delivered over a 2-year period when boys were aged 7–9 years. The programme targeted disruptive behaviours and included two main components: social skills training for the boys at school and training for parents during family visits. […] Thus, the aims of the present study were to conduct a secondary analyses and examine the long-term intervention effects on adolescent substance use and whether these effects are explained by a reduction of risk factors targeted by the intervention, in accordance with either the behavioural dysregulation or the social deviance models.» (p. 188)

2. Méthode

Échantillon/Matériau :
«Thus, of the 172 participants included for analysis in the current study, 46 boys and their parents took part in the intervention, 42 were assigned as controls and 84 were assigned to an intensive observation group.» (p. 189) Les participants ont été recruités à Montréal.

Instruments :
- Self-Reported Antisociality Questionnaire (SRAQ)
- Social Behavior Questionnaire

Type de traitement des données :
Analyse statistique

3. Résumé

«[T]his is the first study to show that an intervention targeting disruptive behaviours, impulsivity, parental supervision and affiliation with deviant peers can have lasting effects on substance use experimentation across adolescence. Moreover, the present study contributes to our knowledge of developmental pathways to substance use, by clarifying the explanatory pathways to substance use behaviour in adolescence. Most importantly, findings provide support for the growing body of literature showing the promise of selective prevention programmes in the prevention of substance use problems, and shows the benefit of targeting known early risk factors for substance use.» (p. 194)