Delphi method: Difference between revisions

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From the 1970s, the use of the Delphi technique in public policy-making introduces a number of methodological innovations. In particular:

* the need to examine several types of items (not only ''forecasting'' items but, typically, ''issue'' items, ''goal'' items, and ''option'' items) leads to introducing different evaluation scales which are not used in the standard Delphi. These often include ''desirability'', ''feasibility'' (technical and political) and ''probability'', which the analysts can use to outline different scenarios: the ''desired'' scenario (from desirability), the ''potential'' scenario (from feasibility) and the ''expected'' scenario (from probability);

* the complexity of issues posed in public policy-making tends to increasedincrease weighting of panelists’ arguments, such often solicited pro and con each item along with new items for panel consideration;

* likewise, methods measuring panel evaluations tend to increased sophistication such as multi-dimensional scaling.