Abstract
Replications are key to the advancement of science. The recent “replication crisis” in the social sciences has highlighted the need for high-powered replications to confirm original results before strong conclusions can be drawn. Here we discuss two big replication projects in psychology and economics respectively and assess their results in terms of the various replication indicators that have been proposed. We further discuss how we have used prediction markets and surveys to predict replication outcomes, and end with a discussion of general quality control in research, and our opinions on improved practices.