Prediction markets and how to power a study

Do you think you know which studies will replicate? Do you want to help improve the replicability of science? Do you want to make some money? Then take part in this study on predicting replications!

But why are researchers gambling on whether a study will successfully replicate (defined as finding “an effect in the same direction as the original study and a p-value<0.05 in a two-sided test” for this study)? Because there is some evidence to suggest that a prediction market can be a good predictor of replicability, even better than individual psychology researchers. read more