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Etc. Frequency Processing and Cognition$
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Peter Sedlmeier and Tilmann Betsch

Print publication date: 2002

Print ISBN-13: 9780198508632

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780198508632.001.0001

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Technology needs psychology: how natural frequencies foster insight in medical and legal experts

Technology needs psychology: how natural frequencies foster insight in medical and legal experts

Chapter:
(p.285) Chapter 18 Technology needs psychology: how natural frequencies foster insight in medical and legal experts
Source:
Etc. Frequency Processing and Cognition
Author(s):

Ralph Hertwig

Ulrich Hoffrage

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198508632.003.0018

Modern diagnostic technologies such as cancer screening tests or forensic DNA tests confront users with a basic problem, namely that of inferring the accuracy of a diagnostic test on the basis of statistical information about the test. The required statistics can be presented in a wide variety of ways. While these modes of presentation of statistical information are mathematically equivalent, psychologically they are not. This chapter shows that supplementing diagnostic technology with psychological knowledge about how people process frequency information provides us with a very simple — but powerful — method for improving diagnostic inferences.

Keywords:   diagnostic technologies, statistics, frequency information, natural frequency, diagnostic tests, DNA analysis

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