Table 1 P2P process evaluation items

1. Did actions go according to plan?

• Compliance with provided protocol

• Respect of schedule

• Running in intervention and control groups

• Several steps

• Step duration

• Completion of each step

• Measurement of deviation from the protocol

• Protocol drafting

• Organization of indicators continuous reporting

• Log book

• Schedule

2. Did actions mobilize participants?

• Participation:

- Project’s Technical Committee

- Beneficiary peers

- Teaching peers

• Regular attendance

• Representativeness

• Attendance sheet

3. How did the actions take place in this context?

• Network analysis:

- Members from the high school house of students

- High-school teachers

- Teaching peers

- Beneficiary peers

- Project’s technical committee

• Network density: number of contacts between members

• Centralization: marginal or not based on the member’s role

• Individual meetings with key program actors

• 3 evaluations (start, middle, and conclusion of the program)

4. How were the actions planned with the teaching peers?

• Issues and assets when taking actions

• Teaching-peers needs

• Relationship with technical committee

• Teaching peers needs analysis (relevance)

• Adequacy of means to needs (consistency)

• Review of actions

• Interviews with the teaching peers at the end of first year and second year of the program

5. How can the P2P program induce changes in high schools?

• Changes in the no smoking policy in high schools

• Changes in the high school students environment

• Number of changes

• Time-scale change (short term, long term)