Latent Factor Models and Analyses for Operator Response Times
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Authors
Gaver, Donald Paul
O'Muircheartaigh, I. G.
Subjects
Latent factor models; extreme-value distribution; Weibull distribution; bootstrap; maximum likelihood estimation; operator response times
Advisors
Date of Issue
1990-09
Date
1990-09
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
Two models are presented for the response times of different operators to different tasks where response is initiated by one or more cues provided by the system. One model for the log-response times is a mixed or latent factor model with unequal case fixed effects and variances. The other model for the log-response times is a non-Gaussian log-extreme-value model. Procedures for estimating the parameters by maximum likelihood are presented. The models are used to analyze response time data from simulator experiments involving nuclear power plant operators performing certain safety-related tasks. The findings of the models are critiqued and applications to risk analysis are sketched. Keyword: Extreme-value distribution; Weibull distribution. (KR)
Type
Technical Report
Description
Series/Report No
Department
Organization
Identifiers
NPS Report Number
NPS-55-90-20
Sponsors
Naval Postgraduate School Research Council Research Program
Funding
O&MN, Direct Funding
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.