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Probability encoding is the process of extracting and quantifying subjective judgments about uncertain quantities. In the early 1970s, the Decision Analysis Group at SRI International recommended a formal process for probability encoding based on a structured interview between a trained interviewer and the subject. Additional methods have been developed for processing encoded probabilities to facilitate their use in decision analysis calculations. The SRI encoding process and its extensions are reviewed, and some examples and insights regarding the techniques that decision analysts have found effective for quantifying judgmental uncertainty are presented.
Miley W. Merkhofer (Tue,) studied this question.