If you publish research conducted using oTree, you are required by the oTree license to cite this paper.
Chen, D.L., Schonger, M., Wickens, C., 2016. oTree - An open-source platform for laboratory, online and field experiments. Journal of Behavioral and Experimental Finance, vol 9: 88-97
Data for all apps in one file. There is one row per participant; different apps and rounds are stacked horizontally. This format is useful if you want to correlate participants' behavior in one app with their behavior in another app.
These files contain a row for each player in the given app. If there are multiple rounds, there will be multiple rows for the same participant. This format is useful if you are mainly interested in one app, or if you want to correlate data between rounds of the same app.