Promoting safer gambling through social norms and goal setting: A qualitative process analysis of participants' experiences in the EROGamb 2.0 feasibility trial

Gambling, though a popular social activity, can lead to addiction and cause significant harm. This study aimed to explore the experiences of 36 low-to-moderate risk gamblers (PGSI score 0-7; 31 male, 5 female; 10 per each intervention arm, 6 per control group) in the 'EROGamb 2.0' feasibility trial (<i>n</i> = 168). The trial used social norm messages and goal setting feedback to promote safer gambling behaviour. Participants took part in semi-structured interviews via telephone or audio calls using Zoom or Wire, a secure messaging app. The interviews were analysed using Framework Analysis. Most participants found the interventions interesting and useful, though some reported no change in their gambling behaviour. Motivations for joining the trial included interest in the topic, altruism, and financial incentives. Participants appreciated the study's clear information, efficient processes, and helpful notifications, despite some technical issues. Reactions to social norm messages were mixed, with some expressing scepticism about the statistics. However, the goal setting intervention was well-received, with participants valuing the clarity and usefulness of the information. External factors, such as promotional offers from gambling companies, influenced gambling behaviour. The findings support the feasibility and acceptability of social norm and goal setting interventions to reduce gambling behaviour, highlighting the need for personalised approaches in future research.