Chart 1.

Multidimensional nature of the The Interacting with Alcohol Competency model (ALADO Program; de la Fuente et al., 2012).

1) Knowing:	Facts: knowledge of the everyday facts and uses of alcohol: problems, uses and abuses, adolescent consumption data*. Concepts: concept of alcoholism, biological and neurological effects of alcohol on the adolescent brain*. Principles: rules of use, responsible fun, respect for one's own body*.
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2) Know how: (Skills)	Instrumental skills: social skills. Meta-behavioral skills for managing stress: self-regulation strategies*.
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3) Mindset (Attitudes)	Attitudes and values: behavioral confidence, self-esteem, self- efficacy, value of abstinence*. Study habits, sport habits, fun habits, free time habits.

^*Variables in this research.