2.4. Outcome Measures
automaticity
Study assessments were conducted either at the Centre of Dentistry, Queen’s University Belfast or in homes of participants if preferred at baseline, six weeks, four months and eight months.The primary outcome was change in self-reported behavioural automaticity index score (SRBAI) from baseline to four months between the intervention group and control group. This was assessed using the 4-item Self-Report Behavioural Automaticity Index (SRBAI) [To allow for between-group differences to be examined, the intervention group and the control group completed a set of generically worded SRBAI items covering each of the three targeted healthy eating behaviours (i.e., fruit and vegetables, wholegrains, healthy proteins), based on previous research [For participants in the intervention group, the SRBAI was also used to quantify automaticity for their novel, planned healthy behaviours; however, the stem was tailored to fit the participant’s specific planned ‘Secondary outcomes reported include the change from baseline to six weeks, four months and eight months between the intervention group and control group in the following measures: