Poststudy Questionnaire

On a scale of 1 (not appealing at all) to 10 (highly appealing), how appealing did you find the slot machine task in general? On a scale of 1 (not undesirable at all) to 10 (highly undesirable), how undesirable did you find the slot machine task in general? In the slot machine task, what would you estimate the probability, out of 100, that choosing the blue slot machine resulted in the appearance of a happy face [disappearance of an angry face]? In the slot machine task, what would you estimate the probability, out of 100, that choosing the orange slot machine resulted in the appearance of a happy face [disappearance of an angry face]? In the slot machine task, what would you estimate the probability, out of 100, that choosing the green slot machine resulted in the appearance of a happy face [disappearance of an angry face]? On a scale of 1 (not motivating at all) to 10 (highly motivating), how motivating was the appearance of a happy face [disappearance of an angry face] for learning which slot machine to choose? For the slot machine task, do you think you would have preferred learning the correct choice of slot machine by working to remove an angry face [make a happy face appear] from the screen rather than getting a happy face [removing an angry face] on each correct choice? (Yes or No) If yes, on a scale of 1 (very slightly preferable) to 10 (very highly preferable), how preferable would you have found learning by removing an angry face [making a happy face appear] to learning by getting happy face responses [working to remove an angry face]?

Note: Language differed by condition in accordance with the reinforcement process of each condition. Alternative prompt text is indicated in square brackets.