Are you referring to meta analyses? They are often used to find p-hacking: [1] http://training.cochrane.org/resource/introduction-meta-analysis http://training

Are you referring to meta analyses? They are often used to find p-hacking: [1] http://training.cochrane.org/resource/introduction-meta-analysis http://training.cochrane.org/resource/introduction-meta-anal... [2] http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1002106 http://journals.plos.org/plosbiology/article?id=10.1371/jour...