Evaluation studies of PDFY have addressed two major issues. First, because the program is designed for the general public, the success of dissemination efforts has been assessed. The questions addressed here are:

• Does the program have a strategy for dissemination?

• Can a broad cross-section of parents be recruited for participation?

• Is the program appropriate, or can it be made appropriate, for diverse groups?

The second issue is the efficacy of the program. The questions here concern the immediate goals and the more long-term goals of the intervention:

• Does the program reduce targeted risk factors and/or enhance protective factors?

• Does the program achieve the ultimate goal of reducing substance abuse?