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The Delphi technique, named after the ancient Greek oracle and conceived by the RAND Corporation in the 1950s, is a method for exploring complicated, uncertain topics unsuitable for more exact analyses due to limitations like unavailable historical information or time series data. The method involves gathering the opinions of a panel of anonymous experts through an iterative series of questionnaires, with feedback on group responses provided between rounds. Delphi studies generally involve between 10 and 75 experts and two to four questionnaire rounds. The first round is often open ended, and subsequent rounds more structured.
Members comprising a Delphi panel can be geographically dispersed. This is especially convenient for tourism-focused Delphi studies, which commonly involve experts from numerous countries. Panel members (e.g., academics, policymakers, and industry representatives) are normally chosen to represent different perspectives or experiences. The researcher’s feedback...
- Garrod, B., and A. Fyall 2005 Revisiting Delphi: The Delphi Technique in Tourism Research. In Tourism Research Methods: Integrating Theory with Practice, B. Ritchie, P. Burns, and C. Palmer, eds., pp.85-98. Cambridge: CABI.Google Scholar