There is no functional way to mask group assignment to the members of the research team. However, the randomization procedure assures that allocation is purely random. whoMasked: PARTICIPANT count: 80 type: ESTIMATED name: Prevention pop-up messages name: Mandatory time limit name: Responsible gambling information name: Electronic gambling machine (model IGT GL20) name: Square terminal measure: Gambling behaviour (between group) - Gambling session's total duration measure: Gambling behaviour (between group) - Total time effectively spent gambling measure: Gambling behaviour (between group) - Number of breaks taken measure: Gambling behaviour (between group) - Mean breaks' duration measure: Gambling behaviour (between group) - Total breaks duration measure: Gambling behaviour (between group) - Mean time elapsed between breaks measure: Gambling behaviour (between group) - Number of different games played measure: Gambling behaviour (between group) - Money betted (physical) measure: Gambling behaviour (between group) - Money betted (all) measure: Gambling behaviour (between group) - Number of bets placed measure: Gambling behaviour (between group) - Gambling speed measure: Gambling behaviour (between group) - Gambling intensity (physical) measure: Gambling behaviour (between group) - Gambling intensity (all) measure: Perceived self-control while gambling on EGMs (between group) measure: General level of fun while gambling on EGMs (between group) measure: Psychological reactance to prevention pop-up messages (between group) measure: Perceived behavioural effectiveness of prevention pop-up messages (between group) measure: Change in gambling behaviours (within group) - Money betted (physical) measure: Change in gambling behaviours (within group) - Total time effectively spent gambling measure: Change in perceived self-control while gambling on EGMs (within group) measure: Change in general level of fun while gambling on EGMs (within group) measure: Perceived realism - Gambling location type most resembling the session in the laboratory measure: Perceived realism - Session in the laboratory VS gambling on EGMs in a bar/restaurant measure: Perceived realism - Similarities between session in the laboratory VS gambling on EGMs in a bar/restaurant measure: Perceived realism - Differences between session in the laboratory VS gambling on EGMs in a bar/restaurant measure: Perceived realism - What could be done to heighten realism of the session in the laboratory measure: Perceived realism - Effect of using one own money on realism measure: Perceived realism - Effect of using one own money on realism (free) measure: Perceived correspondence between habitual gambling behaviour and gambling behaviour during the session in the laboratory measure: Perceived correspondence between habitual gambling behaviour and gambling behaviour during the session in the laboratory (free) measure: Protocol credibility measure: Protocol credibility (free) measure: Recruitment potential - Volunteers measure: Recruitment potential - Recruited measure: Recruitment potential - Rejected measure: Recruitment potential - Refusal measure: Attrition measure: Prevention pop-up messages recall - Free recall (Y/N) measure: Prevention pop-up messages recall - Free recall (number) measure: Prevention pop-up messages recall - Free recall (content) measure: Prevention pop-up messages recall - Cued recall (Y/N) measure: Prevention pop-up messages recall - Cued recall (number) sex: ALL minimumAge: 18 Years stdAges: ADULT stdAges: OLDER_ADULT facility: Centre québécois d'excellence pour la prévention et le traitement du jeu status: RECRUITING city: Québec zip: G1V 0A6 country: Canada name: Benjamin Galipeau role: CONTACT email: benjamin.galipeau.1@ulaval.ca name: Christian Jacques, M.Ps. role: CONTACT email: christian.jacques@psy.ulaval.ca name: Benjamin Galipeau role: PRINCIPAL_INVESTIGATOR name: Isabelle Giroux, Ph.D. role: PRINCIPAL_INVESTIGATOR name: Serge Sévigny, Ph.D. role: PRINCIPAL_INVESTIGATOR name: Christian Jacques, M.Ps. role: SUB_INVESTIGATOR lat: 46.81228 lon: -71.21454 hasResults: False