Upping the Reinforcement Rate by Playing the Maximum Lines in Multi-line Slot Machine Play
Reinforcement is a key component of slot machine play. Multi-line video slot-machine play can lead to “losses disguised as wins” (LDWs) which are credit gains that total less than the wager on the spin. LDWs only occur on multi-line games, with their frequency increasing with the number of lines played. If perceived as wins, they will be reinforcing to the player despite actually being losses. It has been suggested that players may attempt to maximize their reinforcement rates by playing maximum lines with a minimum bet per line. We recorded the actual game play of 83 participants on two different machines having different LDW rates. On both machines, players, regardless of problem gambling status, seldom bet on a single line (<6 % of spins), preferring to bet on the maximum number of lines available (>70 % of spins). Post-reinforcement pauses indicated that players found LDWs significantly more rewarding than losses and as rewarding as small wins. Players significantly overestimated the number of times they won more than their spin wager (i.e., miscategorizing LDWs as wins). Players indicated a number of game traits that made them prefer one machine over the other. Players who preferred the game with many LDWs endorsed “lack of long losing streaks” and “frequency of wins” to a greater degree than those preferring the other game. In sum, gamblers prefer playing maximum lines. Maximum line-play increases the frequency of LDWs. Players may miscategorize LDWs as wins, thus increasing the perceived reinforcement rate of multi-line slot machine.
KeywordsGambling Electronic gaming machines Strategy Problem gambling Choice behavior
- Dixon, M. J., Collins, K., Harrigan, K. A., Graydon, C., & Fugelsang, J. A. (2013b). Using sound to unmask losses disguised as wins in multiline slot machines. Journal of Gambling Studies. doi:10.1007/s10899-013-9411-8.
- Dixon, M. J., Harrigan, K. A., Santesso, D. L., Graydon, C., Fugelsang, J. A., & Collins, K. (2013a). The impact of sound in modern multiline video slot machine play. Journal of Gambling Studies. doi:10.1007/s10899-013-9391-8.
- Dixon, M. J., MacLaren, V. V., Jarick, M., Fugelsang, J. A., & Harrigan, K. A. (2013). The frustrating effects of just missing the jackpot: Slot machine near-misses trigger large skin conductance responses, but no post-reinforcement pauses. Journal of Gambling Studies, 29(4), 661–674.Google Scholar
- Ferris, J., & Wynne, H. J. (2001). The Canadian Problem Gambling Index. Ottawa: Canadian Centre on Substance Abuse.Google Scholar
- IJsselsteijn, W. A., de Kort, Y. A. W., & Poels, K. (2008). The game experience questionnaire: Development of a self-report measure to assess the psychological impact of digital games. Unpublished manuscript. Game experience lab, Department of Technology Management, University of Technology of Eindhoven, Eindhoven, The Netherlands.Google Scholar
- Livingstone, C., Woolley, R., Zazryn, T., Bakacs, L., & Shami, R. (2008). The relevance and role of gaming machine games and game features on the play of problem gamblers. Adelaide: Independent Gambling Authority of South Australia.Google Scholar
- Skinner, R. F. (1953). Science and human behavior. Oxford, England: Macmillan.Google Scholar
- Walker, M. (2004). The seductiveness of poker machines. Gambling Research, 16(2), 52–66.Google Scholar
- Williamson, A. & Walker, M. (2001). Strategies for solving the insoluble: Playing to win Queen of the Nile. In G. Coman (Ed.) Lessons of the Past: Proceedings of the 10th National Association for Gambling Studies Conference, Mildura, 2000 (202-209). Alphington, Victoria.Google Scholar