Table 2 Data sources and measures

Primary: Intervention effectiveness on violence outcomes

Aggression, violence victimization, bullying

Fall Year 1, Spring Year 1, Fall Year 2, Spring Year 2

Michigan Profile for Healthy Youth Survey (MiPHY)^a

Youth Risk Behavior Surveillance Survey (YRBSS)^b

Bully-Free Schools Survey (BFSS)^c

Truancy, behavioral referrals

Spring Year 1, Fall Year 2, Spring Year 2

School Information System (SIS)

School Student Data

Secondary: feasibility and potential utility of implementation facilitation

Meeting agenda, interview prompts

Spring Year 1, Spring Year 2

Staff, student and 3-Person Leadership Team (3-PLT) focus groups

Questions developed by research team

School climate, perceptions of program effectiveness (e.g., violence)

Spring Year 1, Spring Year 2

Delaware School Climate Teacher/Staff Survey^d

Delaware School Survey - Teacher/Staff (DSS-T/S)^d

Secondary: mechanisms and mental health

School climate scale

Fall Year 1, Spring Year 1, Fall Year 2, Spring Year 2

Delaware School Climate Student Survey^d

Delaware School Survey - Student (DSS-S)^d

Anxiety, depressive symptoms, wellbeing

Fall Year 1, Spring Year 1, Fall Year 2, Spring Year 2

Michigan Profile for Healthy Youth Survey (MiPHY)^a

Youth Risk Behavior Surveillance Survey (YRBSS)^b

Secondary: Cost-benefit

Intervention (e.g.,materials) and imple-mentation costs (e.g., training, support)

Monthly

Time tracking by research and school staff

Data collected by research team