The current study investigated the effects of the physical location of the “Bet Max” wager button on a slot machine on 29 recreational gamblers. Distance from the Spin button varied across three groups of gamblers ranging from 9.52mm to 111.12mm. The results indicated a significant change in bet allocation between groups, mainly, greater distance between the Max Bet button and Spin button resulted in fewer responses allocated to the Max Bet button. Implications of the results are discussed in regards to response effort, and gambling device design
