Confidence in psychological findings was shaken by poor rates of successful replications [1, 2] and researchers' reports of engagement in questionable research practices (QRPs) [3]. This ‘replication crisis’ has triggered discussion about how research is performed [2] and calls for more replication, including of addiction research [4]. Relatedly, disappointing levels of successful translation of preclinical research to clinical trials led some to declare a ‘translational research crisis’ [5].