caa a22 4500 445837330 CHVBK 20180317145333.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10899-010-9220-2 doi (NATIONALLICENCE)springer-10.1007/s10899-010-9220-2 The Social Contagion of Gambling: How Venue Size Contributes to Player Losses [Elektronische Daten] [Matthew Rockloff, Nancy Greer, Carly Fay] The Social Facilitation Effect shows performance on many simple tasks is enhanced by crowds of onlookers or co-actors (others performing the same activity). Previous experimental research has shown that Electronic Gaming Machine (EGM) betting behavior is intensified by the belief that others are gambling along with the subject (Rockloff and Dyer, J Gambl Stud 23(1):1-12, 2007). The present study extends these findings by simulating crowds of differing sizes using a fake video-conference along with a live confederate who gambles concurrently with the subjects. Fifty-four male and 81 female subjects aged 18-82 (M=46.9, SD=16.7) played a laptop simulated 3-reel EGM using a $20 stake in 3 conditions: (1) alone, (2) in a simulated group of 5 persons plus 1 live confederate, or (3) in a simulated group of 25 persons plus 1 live confederate. The EGM outcomes were rigged with a fixed 20 trial winning sequence followed by an indefinite losing sequence. As hypothesised, gambling intensity, as measured by trials played, speed of betting and final payouts, was progressively greater with larger crowd sizes (P<.05). In contrast, bet-size was slightly lower with larger crowds. The results suggest that gambling venues with more players tend to increase gambling persistence and contribute to greater long term monetary losses. Springer Science+Business Media, LLC, 2010 Group polarization nationallicence Group effects nationallicence Social influence nationallicence Gambling nationallicence Pathological gambling nationallicence Rockloff Matthew Institute for Health and Social Science Research, Central Queensland University, 4670, Bundaberg, QLD, Australia aut Greer Nancy Institute for Health and Social Science Research, Central Queensland University, 4670, Bundaberg, QLD, Australia aut Fay Carly Institute for Health and Social Science Research, Central Queensland University, 4670, Bundaberg, QLD, Australia aut Journal of Gambling Studies Springer US; http://www.springer-ny.com 27/3(2011-09-01), 487-497 1573-3602 27:3<487 2011 27 10899 https://doi.org/10.1007/s10899-010-9220-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10899-010-9220-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rockloff Matthew Institute for Health and Social Science Research, Central Queensland University, 4670, Bundaberg, QLD, Australia aut NATIONALLICENCE 700 1- Greer Nancy Institute for Health and Social Science Research, Central Queensland University, 4670, Bundaberg, QLD, Australia aut NATIONALLICENCE 700 1- Fay Carly Institute for Health and Social Science Research, Central Queensland University, 4670, Bundaberg, QLD, Australia aut NATIONALLICENCE 773 0- Journal of Gambling Studies Springer US; http://www.springer-ny.com 27/3(2011-09-01), 487-497 1573-3602 27:3<487 2011 27 10899 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer