Experimental Design
We employ a within-subject design. Subjects first face six different decision tasks. In each task, there is a list of gambles. Subjects need to exert effort to acquire the gamble. In general, the more effort they exert, the higher the expected value would be from the gamble. The tasks differ in whether the effort increases the chance of winning or the return of winning. Subjects choose one gamble from each decision task.
Then, subjects do a short filler task (be distracted), after which they receive either a high payment or a low payment. We consider the subjects who receive a low payment to be frustrated.
Last, subjects are presented with the same six decision tasks again. They can make choices the same as or different from their previous choices, depending on themselves. In total, they choose 12 gambles. We draw one gamble for them to work on.