Project TIER’s mission is to promote a systemic change in the professional norms related to the transparency and reproducibility of empirical research in the social sciences. It is guided by the principle that providing comprehensive replication documentation for research involving statistical data should be as ubiquitous and routine as providing a list of references.  Authors should view this documentation as an essential component of how they communicate their research to other scholars, and readers should not consider a study to be credible unless such documentation is available.

We will know the mission has been accomplished when failing to provide replication documentation for an empirical study is considered as aberrant as writing a theoretical paper that does not contain proofs of the propositions, an experimental paper that does not describe the treatment conditions, or a law review article that does not cite legal statutes or judicial decisions.