Table 3

Summary of data sources and their aims

Data sourceScopeRecruited byAim
1. Survey of parents/carers who participated in the community programmeA 5-min written survey of 10 questions with a mixture of open-ended, single and multiple response questions. One per parent/carer (control and treatment)Distribution and collection at the 6-month health assessments of the trialFocus: overall barriers and enablers to behaviour change, and recruitment
Obtain top of mind feedback on core elements of the intervention, and invite families to consent to be contacted for a focus group or family interview
2. Focus groups with parents/carers4–6 groups, lasting 30–60 min, with 6–8 participants depending on thematic saturationBrief survey. Selection will be based on quota specifications around key participant and group characteristics (see ‘Participants’)Focus: process evaluation
Explore experiences, perceptions and engagement in the specific intervention component
3. Family interviews with parents/carers and their children who participated in the community programme and other family members (eg, siblings)10–20 interviews lasting 30–60 min, depending on thematic saturationBrief survey. Selection will be based on quota specifications around key participant and group characteristics (see ‘Participants’)Focus: impact evaluation
Gain insights into the contextual factors influencing outcomes
4. Stakeholder interviews10 individual or group interviews depending on thematic saturationPhone calls made by GE. Stakeholders will be targeted according to quotas based on roles in the various design and implementation stages of the RCTFocus: process evaluation
Understand issues associated with the intended and actual delivery of the intervention
5. Project management materialsDecision logs, implementation plans and other project management documentationRetracing project management activity, stored securely at the Department of Premier and CabinetCollect additional insight into issues, mitigations, processes and learnings documented by the project team throughout the trial
  • RCT, randomised controlled trial.