Abstract
By postulating that the random utilities associated with the choice options follow a multivariate normal distribution, Thurstonian models (Thurstone, 1927) provide a straightforward representation of paired comparison data. The use of Monte Carlo Expectation-Maximization (MCEM) algorithms and limited information approaches have been proposed to overcome the estimation intractability in analyzing data with a large number of choice items. However, these approaches have not yet been implemented into standard statistical software. For paired comparison data with a medium number of items (≤6), it is possible to use the free software program Mx to obtain parameter estimates. This article shows how Mx can be used to obtain parameter estimates for Thurstonian paired comparison models. A number of simulations are conducted to assess its validity in obtaining the estimates in comparison to MCEM. In addition, 2 datasets are analyzed to demonstrate the use of MX in real applications.
Original language | English |
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Pages (from-to) | 73-91 |
Number of pages | 19 |
Journal | Structural Equation Modeling |
Volume | 11 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2004 |
ASJC Scopus subject areas
- General Decision Sciences
- General Economics,Econometrics and Finance
- Sociology and Political Science
- Modelling and Simulation