Table 2 Key Components of the IMPACT Process Evaluation
Component | Topic | Method(s) |
|---|---|---|
Implementation | Was the intervention implemented with a high degree of fidelity? | Observations of 18 group meetings (one per cluster) – using template notes Interrogate group attendance logs and activity records (photographed monthly) in each cluster |
|  | Which behaviour change techniques are used? | Observations of group meetings (n = 18) |
Mechanisms | How do facilitators, group leaders and group members interpret their roles and interact with each other | Observation of group meetings (n = 18) Individual interviews with overall facilitator and 3 local facilitators |
|  | To what extent is the intervention sensitive to facilitator/group leader effects? | Observation of group meetings (n = 18) and comparison of differences between those groups Individual interviews with overall facilitator and 3 local facilitators Group interviews with a random sample of 9 groups stratified by facilitator |
|  | To what extent (and how) has the IMPACT intervention been effective in facilitating behaviour change amongst participants? | Observations of group meetings (n = 18) Group interviews (n = 9) stratified by facilitator Individual walking interviews with 2 randomly sampled participants (1 male, 1 female) from 9 groups using photo elicitation |
|  | How, if at all, have self-help group meetings helped participants improve their health, social and economic wellbeing? | Exploration of lived experiences through group interviews (n = 9) and individual walking interviews (n = 18) using photo elicitation |
|  | What are the experiences of those in the control groups? | Semi-structured individual interviews with 4–5 group members across 9 clusters |
Social context (including the social environment) | How does the social context shape the intervention? What is the community perception of people who are differently abled? | Group interviews (n = 9) Individual interviews with influential members of the broader local community (details of whom will be derived from earlier interviews and roles/numbers may vary between clusters) |
Environmental context | How does the environmental context shape the intervention? | Researcher observations from individual interviews, group interviews and walking interviews on availability of support (e.g. community health workers). Information gathering on proximity to services, water and sewage provision, location of each group, village size (population), crops grown, sources of income, distance from the nearest health facility and town/city using template. |