If the results in a published study can’t be replicated in subsequent experiments, how can you trust what you read in scientific journals? One international group of researchers is well aware of this reproducibility crisis, and has been striving to hold scientists accountable. For their most recent test, they attempted to reproduce 21 studies from two of the top scientific journals, Science and Nature, that were published between 2010 and 2015. Only 13 of the reproductions produced the same results as the original study.