Predicting gambling behaviour and problems from implicit and explicit positive gambling outcome expectancies in regular gamblers

Melissa J. Stewart, Sherry H. Stewart, Sunghwan Yi and Michael Ellery

International Gambling Studies, 2015, vol. 15, issue 1, 124-140

Abstract: Outcome expectancies are the positive or negative effects that individuals anticipate may occur from engaging in a given behaviour. Although explicit outcome expectancies have been found to play an important role in gambling, research has yet to assess the role of implicit outcome expectancies in gambling. In two studies, we investigated whether implicit and explicit positive gambling outcome expectancies were independent predictors of gambling behaviour (i.e. amount of time spent and money risked gambling; Study 1) and problem gambling severity (Study 2). In both studies, implicit positive gambling outcome expectancies were assessed by having regular gamblers ( N = 58 in Study 1; N = 96 in Study 2) complete a gambling outcome expectancy reaction time (RT) task. A self-report measure of positive gambling outcome expectancies was used to assess participants' explicit positive gambling outcome expectancies. Both the RT task and self-report measure of positive gambling outcome expectancies significantly contributed unique as well as shared variance in the prediction of self-reported gambling behaviour (Study 1) and problem gambling severity (Study 2). Findings from the current research point to the importance of using both direct and indirect assessment modes when examining the role of outcome expectancies in gambling.

Date: 2015
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DOI: 10.1080/14459795.2014.1000357

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International Gambling Studies is currently edited by Katie Donnelly, David Marshall, Bronwyn Stuart, Alex Blaszczynski and Jan McMillen

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