Patterns of substance use among Argentinean adolescents and analysis of the effect of age at first alcohol use on substance use behaviors.

Objective: The present study used an empirically based method to characterize substance use in a sample of Argentinean adolescents and analyzed the association between age at drinking onset and substance use behaviors. Differences in alcohol expectancies and personality traits as a function of different patterns of substance use were also explored.

Method: Data were obtained from 583 adolescents aged 13-18years (M=15.

Underage drinking: prevalence and risk factors associated with drinking experiences among Argentinean children.

The aim of this study was to describe the prevalence and predictors of alcohol drinking behavior in children. Data were obtained from 367 children, aged 8-12 years (M = 10.44 years, SD = 1.

Young adults' knowledge of politics: evaluating the role of socio-cognitive variables using structural equations.

The aim of this study was to create an explanatory model that allows analyzing the predictive power of a set of variables related to political knowledge; more specifically, to analyze the relationship between the education level of young adults and the variables, interest in politics and internal political efficacy. We also analyzed the combined relationship between these variables, together with age, and political knowledge. We worked with a sample group of 280 young adults between the ages of 18-30 from the city of Córdoba (Argentina).