Included	Excluded
Date: 1997 to present	Date: pre‐1997
Publication status: published or unpublished but in the public domain
Nature of research: empirical research or review of empirical research	Nature of research: nonempirical research or review of nonempirical research
Study design: RCT; quasiexperiment (with baseline equivalence), including RDD	Study design: study using IV approach; nonexperimental study designs (i.e., studies without a control or comparison group)
Topic: education, social welfare, crime and justice	Topic: not education, social welfare, crime and justice