Stage 5: End of study and debriefing

Following the final assessment session, household representatives were fully debriefed by the researcher on the study aims. The debriefing process included an explanation of the study’s scientific aim and the reasons for not revealing this at recruitment (i.e. that awareness of the intervention’s purpose was expected to influence the outcome), as well as information regarding the adverse consequences of excessive alcohol consumption. Household representatives were asked to provide written consent for their household’s collected data to be used, having been informed of the scientific aims of the study.

At the end of the study, households received £150 worth of shopping vouchers for completion of all intervention periods and follow-up assessments.