Must be a multiple of 3
Must be a multiple of 1
Since workers can return an assignment or drop out, some "spare" participants will be created: the oTree session will have 2 times more participant objects than the number you enter here.
You can make more properties configurable by adding them to your session config in settings.py.
This is a one-period public goods game with 3 players.
This application provides a webpage instructing participants how to get paid. Examples are given for the lab and Amazon Mechanical Turk (AMT).
a.k.a. Keynesian beauty contest. Players all guess a number; whoever guesses closest to 2/3 of the average wins. See https://en.wikipedia.org/wiki/Guess_2/3_of_the_average