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Table 3 Process evaluation methods

From: Protocol for a cluster randomised controlled trial of a Peer-Led physical Activity iNtervention for Adolescent girls (PLAN-A)

Informant

Method

Data collected

Time point

Peer supporter (PS)

Register

Training attendance

PS training days

Questionnaire

Quantitative and qualitative feedback about training enjoyment, activities, ability to prepare girls to peer support and trainer autonomy support

Post two-day and top-up PS training

Questionnaire

Quantitative and qualitative feedback regarding the types, frequency and extent of support given to peers

Week 5 and 10 of intervention

Focus groups

Thoughts on the PS training (and trainers), on their role as a peer supporter (enjoyment, successes, challenges, impact), and PS actions

Post intervention

Trainer

Questionnaire

Quantitative ratings about the PS training arrangements, objective fulfilment and PS engagement

Post two-day and top-up PS training

Training observation

Observations on PS training logistics, PS engagement, intervention fidelity and trainer style

PS training days

Semi-structured interviews

Feedback about the train-the-trainers, delivery of PS training and improvements

Post top-up PS training

Non-peer supporter

Questionnaire

Intervention schools only – contact with PS and its perceived impact

T1

Focus groups

Awareness of PLAN-A, thoughts on the PS, and perceived impact (did they talk to a PS? If so, did it help them change their behaviour?)

Post intervention

School contact

Semi-structured interview

Level of involvement with the study, data collection arrangements, intervention implementation, potential impact and sustainability

Post intervention

Public health commissioners

Semi-structured interview

Advice about sustainability and dissemination, funding and roll-out

Post intervention