Defining consensus: A systematic review recommends methodologic criteria for reporting of Delphi studies

To investigate how consensus is operationalized in Delphi studies and to explore the role of consensus in determining the results of these studies.Systematic review of a random sample of 100 English language Delphi studies, from two large multidisciplinary databases [ISI Web of Science (Thompson Reuters, New York, NY) and Scopus (Elsevier, Amsterdam, NL)], published between 2000 and 2009.About 98 of the Delphi studies purported to assess...