Study design
We conduct the study on Dutch schools of higher secondary
education and lower secondary and tertiary education,
because this is the most convenient place to
reach adolescents. Thus, a CRTC, with one experimental
and one waiting-list control condition randomized at
school level, is used to test the effectiveness of the intervention
to reduce binge drinking in 16 to 18 year old
adolescents. Originally, the study consisted of a baseline
measurement in October 2013 followed by the
intervention and a six months follow-up measurement
(April 2014). In the beginning of 2013 the Dutch government
started a debate about rising the legal buying
age for adolescents from 16 years to 18 years per 1st of
January 2014. Because our target group comprises Dutch