Perception of parental knowledge by parents and adolescents: Unique effects on recent substance use in a Latinx sample.

The main objective of the current study is to analyze how the unique perspectives from both parents and children in regards to parental knowledge of the child's whereabouts, activities, and friendships are related to the adolescent's recent substance use four months later. Differences between parents and children, as well as between male and female adolescents are examined. Data come from a Latinx sample (mostly Mexican-origin) of 523 parent-adolescent dyads from Arizona (US) using a multi-informant approach (parent and adolescent reports). The results indicate that parents, especially mothers, report higher levels of parental knowledge than adolescents do. The structural equation modeling (SEM) results for the total sample indicate that both parents' and adolescents' unique perception of the level of parental knowledge is negatively related to the adolescents' recent alcohol and cannabis use four months later. Further, multi-group SEM results split by gender indicate that parents' unique perception of higher levels of parental knowledge is only marginally related to lower alcohol use for both males and females, whereas adolescents' unique perception is negatively related to alcohol and cannabis use (significantly) and tobacco use (marginally) for both males and females. No significant gender differences were found in the effects of parental knowledge on substance use. Findings suggest that parents' and adolescents' perceptions seem to be quite distinctive and independent from each other. Implications of these results regarding intervention programs for preventing substance use are discussed.