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Human Factors Engineering and Ergonomics, 3rd Edition
book

Human Factors Engineering and Ergonomics, 3rd Edition

by Stephen J. Guastello
April 2023
Intermediate to advanced content levelIntermediate to advanced
708 pages
24h 52m
English
CRC Press
Content preview from Human Factors Engineering and Ergonomics, 3rd Edition
76 Human factors engineering and ergonomics
In Equation 4.4, d
A
is the adjusted discrimination index, μ
s
and μ
n
are the
means of the signal and noise distributions, respectively, and σ
2
s
and σ
2
n
are
the variances of the signal and noise distributions respectively. It is obvious
that d is a statistical value after all. Accurate values of d will be obtained
to the extent that the values of d in the research sample approximate the
theoretical distributions (populations values) for the stimuli. Population
values are tenable when there are at least 50 observations for each particular
signal strength used in the experiment (Robertson & Morgan, ...
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Publisher Resources

ISBN: 9781000822045