Research has shown that most individuals’ gambling is maintained more by positive, than by negative, reinforcement but that disordered gambling is more strongly related to gambling maintained by negative, than positive, reinforcement. Forty five participants were recruited to play video poker in two different sessions: one in which they competed for a $50 gift card and one in which they could play after trying to solve unsolvable anagrams. Higher measures of gambling were observed in the gift-card, than in the anagram, session, but none of the differences were statistically significant and the observed effect sizes were small. Participants’ annual income did predict their behavior in the gift-card, but not the anagram, session while their endorsing gambling as an escape on the Gambling Functional Assessment – Revised predicted their behavior in the anagram, but not the gift-card, session. Thus, the procedure failed to produce different gambling behavior as a function of manipulating the contingencies in the laboratory. However, the results replicate previous ones showing that certain subject variables are predictive of gambling behavior under certain situations.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.