Drawing on the authors' experience in the international Campbell Collaboration, this essay presents a principled and pragmatic approach to evidence-informed decisions about child welfare. This approach takes into account the growing body of empirical evidence on the reliability and validity of various methods of research synthesis. It also…

Many researchers and research funders want their work to be influential in educational policy and practice, but there is little systematic understanding of how policymakers and practitioners use research evidence, much less how they acquire or interpret it. By understanding what does shape policymakers' and practitioners' decision making and the…

This bulletin presents information relating to the national conference on the Office of Education statistical program which took place October 1-3, 1945. The material herein consists of the agenda of the conference, reports of the three study committees on (1) purpose and scope of the statistical program, (2) collection of data, and (3)…

The educational surveys of which some account is given in this bulletin do not by any means represent all the foreign investigations that have been made; it is believed, however, that they will serve to acquaint American students of education with certain foreign types, and at the same time throw some light on the history of surveys and of…