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A frequently used method in futures research to obtain the consensus opinion of a group of experts about likely future developments. A series of questionnaires is used with controlled feedback given to participants between rounds of questions.
(marketing research definition)
A method of forecasting that relies on repeated measurement and controlled feedback among those participating along the following lines:
(a) each individual prepares a forecast
(b) the forecasts are collected, and an anonymous summary is prepared by the person supervising the process
(c) the summary is distributed to each person who prepared a forecast
(d) those participating in the process are asked to study the summary and submit a revised forecast
The process is repeated until the forecasts converge.
American Marketing Association.
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