Paper in Psychological Reports
  • Monaghan, S., Blaszczynski, A., & Nower, L. (2009). Do warning signs on electronic gaming machines influence irrational cognitions?. Psychological Reports, 105, 173-187.

    Recognizing that electronic gaming machines are over-represented among problem gamblers, governments have introduced responsible gaming legislation incorporating the mandatory display of warning signs on or near electronic gaming machines. Based on the cognitive model of gambling, these signs are designed to correct irrational and erroneous beliefs through the provision of accurate information on probabilities of winning and the concept of randomness. To date, however, there is minimal empirical data evaluating the effectiveness of government-mandated messages. In this study, 93 undergraduate students were randomly allocated to standard and informative messages displayed on an electronic gaming machine during play in a laboratory setting. Results revealed that a majority of participants incorrectly estimated gambling odds and reported high levels of irrational gambling-related cognitions prior to play. In addition, there were no significant between-group differences, and few participants recalled the content of messages or modified their gambling-related cognitions. The study suggests that signs placed on electronic gaming machines may have minimal impact in modifying irrational beliefs or altering behaviour. Implications for future research are discussed.