Data collection took place in the classroom, collectively,
with no teacher present. A trained team explained the
objectives of the project and distributed the questionnaire,
which was a self-report paper and pencil instrument
with closed questions from an instrument of the
World Health Organization [33] and the European
School Survey Project on Alcohol and Other Drugs
(ESPAD) questionnaire [34], adapted to the Brazilian
culture. In addition to questions on the respondent’s
history and pattern of drinking and other drug use, the
instrument collected information on students’ SES, religious
behavior, leisure activities, and family functioning
and structure.