Discuss the Community Psychology Core Values That Might Come into Conflict

Discuss the community psychology core values that might come into conflict in the following example.
A public school district is awarded a grant to implement programs to reduce or prevent substance abuse among its students.The district soon discovers that many programs exist for this purpose.Some lack research on their effectiveness,yet are popular among citizens in the district.The effectiveness of other programs is documented in research,and district staff prefer these.How does the district decide which program to implement?