Brian Nosek discusses the reproducibility project, a crowdsourced collaboration of 270 authors, which attempted to repeat 100 published experimental and correlational psychological studies. When the results of the study were released in 2015 it was a shock to the scientific world: only 36% of the studies replicated, and of those that replicated, many of their results were smaller than those in the original papers. So is there only a problem in psychology or does it go much further?

Find out more about Brian's work at the Center for Open Science: https://www.cos.io/