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Elementary Signal Detection Theory$
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Thomas D. Wickens

Print publication date: 2001

Print ISBN-13: 9780195092509

Published to Oxford Scholarship Online: April 2010

DOI: 10.1093/acprof:oso/9780195092509.001.0001

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Operating characteristics and the Gaussian model

Operating characteristics and the Gaussian model

(p.39) Chapter 3 Operating characteristics and the Gaussian model
Elementary Signal Detection Theory

Thomas D. Wickens

Oxford University Press

An operating characteristic (receiver-operating characteristic, ROC, or isosenstivity function) can be calculated whenever detection of a signal is observed under conditions that change the observer's propensity to respond positively. This chapter uses this function to understand the observer's detection process. Its form is derived from the signal-detection model, and how to calculate it from data is described.

Keywords:   isobias, isosensitivity, operating characteristic, receiver-operating characteristic, ROC

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