Table 2

Behaviour change wheel (BCW) activities to drive development of culture-specific trial arm

11. Behavioural diagnosisUse the BCW to determine what needs to change for colorectal cancer (CRC) screening uptake to increase among African-American men.
22. Intervention strategy selectionUse1 to decide which intervention functions to apply (eg, education, persuasion, enablement).
33. Behaviour change technique IdentificationDevelop a detailed culture-specific arm plan by selecting from among a range of specific, evidence-based behaviour change techniques (eg, intervention components such as barbers as motivational interviewers plus barbers distributing fecal immunochemical test kits; info about health consequences related to negating CRC screening).
44. Draft full intervention specificationsCreate the detailed intervention specifications covering all aspects of content and delivery of the intervention structured around.3