The Pathways Clearinghouse team uses prespecified keywords to systematically search databases of journal publications, evaluation reports, and unpublished literature (such as working papers). We also incorporate studies cited in literature reviews and those submitted in response to a public call for relevant studies. We screen studies for their eligibility to be included in the review against a set of predefined criteria. Then, we prioritize the eligible studies based on publication date (examining the most recent first and turning to older research as resources allow). For more information, please see the Protocol for the Pathways to Work Evidence Clearinghouse.