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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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The equal-variance Gaussian model

The equal-variance Gaussian model

Chapter:
(p.17) Chapter 2 The equal-variance Gaussian model
Source:
Elementary Signal Detection Theory
Author(s):

Thomas D. Wickens

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195092509.003.0002

This chapter describes the simplest (and most used) signal-detection representation, based on the normal or Gaussian distribution, which distinguishes between sensitivity to a signal and bias of the response. How to measure both quantities is described. What an “ideal” observer would do is derived from the model.

Keywords:   bias, d-prime, Gaussian detection model, ideal observer, sensitivity

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