Table 1

Process evaluation objectives, research questions and data sources

Process evaluation objectiveResearch questionsData sources
1. Assess implementation
  • Recruitment

  • Reach

  • Dose received

  • Dose delivered

  • Fidelity

  • To which degree is the intervention implemented as planned?

  • Which barriers and facilitators to delivery as planned can be identified?

  • Semi-structured interviews with health workers

  • Semi-structured interviews with patients

  • Reasons for non-participation as noted by health workers

  • Quantitative trial data

  • Audio recordings of intervention delivery (fidelity)

  • Guided site observation

  • Survey among research assistants

2. Assess mechanisms of impact (interaction)
  • What are health workers’ and patients’ responses to the intervention (including their interactions with the intervention)

  • Which, if any, improvements to the intervention are recommended by participants?

  • What tailoring occurred to the intervention on the ground?

  • Semi-structured interviews with health workers and patients

  • Audio recordings of intervention delivery (fidelity)

  • Research assistant updates on changes at facilities

  • Survey among research assistants

  • Guided site observation

3. Assess context of intervention delivery
  • Which contextual factors may influence implementation?

  • Which contextual factors may influence mechanisms of impact?

  • Which contextual factors may influence outcomes?

  • Guided site observation

  • Survey among research assistants

  • COM-B and COACH Questionnaires filled in by health workers

  • Semi-structured interviews with health workers and patients

  • Policy review

  • Central and district and in-charge interviews

  • COACH, COntext Assessment for Community Health; COM-B, capability, opportunity, motivation and behaviour.