App-based experiments

We elicit and compare behaviors in the laboratory and on a smartphone application that we developed for this study. Our participant pool consists of university students who are subjected to identical incentives and selection criteria. Behavior is similar across samples in measures of attitudes towards risk, effort, cognitive ability, strategic reasoning, trust, and lying aversion. Additionally, participants show comparable beliefs about the actions of the other players. We also identify certain quantitative differences between the two groups. Specifically, subjects using the app donate more in the dictator game, are faster, and show less consistency. These findings show the potential of using smartphone applications to organize experiments, and emphasize the importance of a clear and simple interface in this environment.