Table 1 Data collection procedures and schedule of measures

1. To capture the recruitment and retention rates of intervention recipients and explore factors influencing participation

Reach^a

Participation rate in the innovation by the intended audience

Intervention recipients

Recruitment and retention records (i.e. #who were eligible, #who consented, #who enrolled, #who stayed)

X

X

X

X

X

Demographic section in questionnaire

X

X^c

Feedback questionnaire and focus group

X

X

Parents/guardians

Questionnaire

X

2. To determine attendance rates and the extent to which intervention providers implemented the intervention as intended

Dose^b

Dose delivered: The number/amount of intended units delivered/provided (i.e. dose is a function of the efforts of intervention providers)

Dose received: Extent to which participants engage or interact with is receptive or use intervention (i.e. dose is a function of the efforts of intervention participants)

Fidelity^b

The extent to which the programme was implemented as planned

Intervention recipients

Attendance records

X

Intervention providers

Project leader logbooks

X

3. To assess the feasibility of using proposed self-reported outcome measures

‘Data completion rates’ of outcome measures were used as an indicator to the following:

Feasibility of future trial design to conduct a full trial^a

Measures informing implementation trial methods including the feasibility, acceptability, or quality of data collection procedures, survey items, tools, or data management strategies

Intervention recipients

#Outcome measures completed (% data completion)

X

X

X^c

X

4. To explore stakeholders’ satisfaction with the intervention

Acceptability^a

Service providers or support system’s satisfaction with the innovation

Intervention recipients

Feedback questionnaire and focus group

X

X

Intervention providers

Feedback questionnaire

X

Intervention providers

Focus group

X

X

Parents/guardians

Questionnaire and semi-structured interview

X

School staff

Semi-structured interview

X

5. To examine the perceived fit and sustainability of the intervention in the school setting

Compatibility (appropriateness)^a

Perceived fit of the innovation with organisation’s values, mission ,and priorities

Intervention recipients

Feedback questionnaire and focus group

X

X

Intervention providers

Feedback questionnaire

X

Intervention providers

Focus group

X

X

Parents/guardians

Questionnaire and semi-structured interview

X

School staff

Semi-structured interview

X

6. To understand context, i.e. the external factors that affected intervention implementation

Context^a

Political, economic, or social influences on implementation of the innovation

Intervention recipients

Feedback questionnaire and focus group

X

X

Intervention providers

Feedback questionnaire

X

Intervention providers

Focus group

X

X

Parents/guardians

Questionnaires and semi-structured interviews

X

School staff

Semi-structured interviews

X