Four principles of evidence based policy development.

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Researchers, policy makers and others can apply these principles in decision making process.

  1. 1


    • Involves policy makers and is relevant and useful to them
    • Considers many types and sources of evidence
    • Uses a range of skills and people
  2. 2


    • Uses the most comprehensive feasible body of evidence
    • Recognizes and minimizes bias
    • Is independently reviewed as part of a quality-assurance process
  3. 3


    • Clearly describes the research question, methods, sources of evidence and quality assurance process
    • Communicates complexities and areas of contention
    • Acknowledges assumptions, limitations and uncertainties, including any evidence gaps
    • Declares personal, political and organizational interests
  4. 4


    • Is written in plain language
    • Is available in a suitable time frame
    • Is freely available online


1 Donnelly, C. A., Boyd, I., Campbell, P., Craig, C., Vallance, P., Walport , M., Whitty, C. J. M., Woods, E., & Wormald, C. (2018, June 2020).

Four principles to make evidence synthesis more useful for policy. Nature . Retrieved from: