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Fig. 4 | Cognitive Research: Principles and Implications

Fig. 4

From: Theoretical vs. empirical discriminability: the application of ROC methods to eyewitness identification

Fig. 4

Hypothetical receiver operating characteristics (ROC) curve for a lineup procedure in which a 5-point confidence scale was used. The number above each point is the diagnosticity ratio for that correct and false positive identification (ID) rate pair. The region shaded in light gray represents the partial area under the ROC curve (pAUC) for the specified false ID rate range of 0 to FAR max , which is equal to .057 in this case. The diagonal line represents chance performance (where correct ID rate = false ID rate)

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