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A Latent Variable Model for Discrete Multivariate Psychometric Waiting Times

Published online by Cambridge University Press:  01 January 2025

Jeffrey A. Douglas*
Affiliation:
Department of Biostatistics, University of Wisconsin-Madison
Michael R. Kosorok
Affiliation:
Departments of Statistics and Biostatistics, University of Wisconsin-Madison
Betty A. Chewning
Affiliation:
School of Pharmacy, University of Wisconsin-Madison
*
Requests for reprints should be sent to Jeffrey A. Douglas, Department of Biostatistics, K6-446 Clinical Science Center, University of Wisconsin, 600 Highland Avenue, Madison, WI 53792. E-mail: douglas@biostat.wisc.edu

Abstract

A version of the discrete proportional hazards model is developed for psychometrical applications. In such applications, a primary covariate that influences failure times is a latent variable representing a psychological construct. The Metropolis-Hastings algorithm is studied as a method for performing marginal likelihood inference on the item parameters. The model is illustrated with a real data example that relates the age at which teenagers first experience various substances to the latent ability to avoid the onset of such behaviors.

Information

Type
Original Paper
Copyright
Copyright © 1999 The Psychometric Society

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