Limitations
This study had several limitations. First, itwas a pilot
study to help develop prevention education and was
conducted in only 2 schools. This may influence generalizability
of results among Taiwanese junior high
students. Involvement of more schools and a larger,
more heterogeneous sample is warranted in future
studies; we are currently carrying out a large-scale
study in which we have corrected the drawbacks in
random selection of participants and construction of
groups and have included a longer follow-up period.
Second, data on actual illicit drug-use behavior were
not available. Follow-up behavior measures toward
different illicit drugs are needed in order to determine
whether the program can achieve the goal
of preventing students from using illicit drugs. This
study did not discern among different types of illicit
drugs; future studies can divide drugs into those of
different addictive potentials to further examine this
issue.