The news article is reporting based on a current open-access research publication, where you can read about more details of the study methodology. Freedman LP,

The news article is reporting based on a current open-access research publication, where you can read about more details of the study methodology. Freedman LP, Cockburn IM, Simcoe TS (2015) The Economics of Reproducibility in Preclinical Research. PLoS Biol 13(6): e1002165. doi:10.1371/journal.pbio.1002165 http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1002165 http://journals.plos.org/plosbiology/article?id=10.1371/jour...