Decision Criteria in Person Recognition

Abstract

The application of the signal detection model to person recognition is discussed, emphasizing the significance of the decision criteria parameters. A recognition experiment is reported which suggests that the discriminability ofpersons is within the range in which shifts in decision criteria are of considerable importance. The results also show that there is much greater intersubject variability in decision criterion placement than in the discriminability of this material. The remainder of the article discusses the role of the two components of decision criteria of person recognition, namely, subjective probability and the payoff matrix.

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