Indifference Technique

The indifference technique is analogous to the midvalue point method for assessing a value function. The major steps involved in these two procedures are the same. The difference between these two methods lies in the nature of the question being asked of the decision maker. The indifference technique requires the decision maker to assess an outcome that will make him or her indifferent between this output and a 50-50 gambling of two other outcomes that have a utility value. A pointwise approximation of the utility function can be obtained by asking a series of such questions. Once the utility curve is determined it can be used for converting the raw data on the spatial distribution of an attribute to a standardized criterion map.

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