The realist evaluation process and data sources
| Phase | Sources of data and activity |
| Phase 1 Identifying a programme theory | Document analysis of programme specific material Focus groups with key stakeholders and architects involved in the programme design and implementation |
| Phase 2 Testing a programme theory | Focus groups with three consecutive student cohorts enrolled on the Gateway programme |
| Phase 3 Refining the programme theory | Analysis of material and refinement of CMOs |
CMOs, contexts, mechanisms and outcomes.