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Nonpartisan research to promote education policy and practice.
Researchers share working papers when they want to share their findings with others ahead or outside of the journal publication process. Authors may revise and re-upload papers based on peer feedback, but these papers have not gone through a systematic process of peer review.
Reports and other content published by research centers and policy organizations fall into the category of grey literature.
Grey literature is material published by organizations whose main function is not publishing (e.g., academic journals or book publishers). It may not go through a peer review process, Examples of grey literature include think tank reports, policy briefs, working papers, and conference proceedings.
Check the "About Us" section of the organization's website to check for authors' institutional affiliations, political interests, and the mission of the organization. This can help you recognize bias in the research.
Check reports for citations and evidence, as you would a journal article or book.
Check what else the organization has published, for context.