The general process evaluation plan including general process outcome questions, areas to measure, and data sources
| Process evaluation objective | Overarching research questions | Data source and data collection |
| Adherence | ||
| Content | Were the three intervention components implemented as planned? | Questionnaires, interviews, diary |
| Coverage | What proportion of the targeted groups participated in the intervention? | Attendance lists |
| Moderating factors | ||
| Recruitment | What barriers for maintaining involvement of individuals/groups in the intervention was identified? What recruitment procedures were used to engage professionals and parents in the intervention? | Meeting minutes, interviews, surveys |
| Participant responsiveness | Did participants find intervention content useful? How satisfied were the participants with the intervention services? How did the participants perceive the relevance of the intervention? | Questionnaires, interviews |
| Strategies to facilitate implementation | Which strategies were put in place by work units participating in the training of professionals to implement learnings from the training? | Interviews |
| Context (inner and outer) | What factors at policy, organisational and work group levels affected the implementation? Which barriers and facilitators to delivery as planned can be identified? | Interviews, meeting minutes, diary |
| Quality of delivery | How did professionals perceive the impact of the intervention for example, which elements did they find to be most helpful and unhelpful in meeting their needs? | Interviews |
| Intervention complexity | How complex is this intervention? | A group of external researchers will evaluate the intervention complexity |
Modified from Hasson Systematic evaluation of implementation fidelity of complex interventions in health and social care.17