Take Part in a Bayesian Forecasting Study (the Winner Receives €100/$120)

Can you predict the effect sizes of typical psychology experiments? Take part in our survey and find out! The winner earns €100 or about $120. Participants should have at least a rudimentary understanding of statistics and effect sizes.


The survey takes only 15 minutes and you will receive feedback about your performance; pilot testers reported that it is tons of fun!

Start the survey by clicking this link! Please complete on a PC or laptop.