A random effects individual difference multidimensional scaling model

Recent algorithms for nonlinear mixed effects models can also be used, after some modification, to fit individual differences multidimensional scaling models in which the subject weights are random effects. The models we propose here have several advantages over models which do not use random effect...

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Bibliographic Details
Published inComputational statistics & data analysis Vol. 32; no. 3; pp. 337 - 347
Main Author Clarkson, Douglas B
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 28.01.2000
Elsevier Science
Elsevier
SeriesComputational Statistics & Data Analysis
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Online AccessGet full text
ISSN0167-9473
1872-7352
DOI10.1016/S0167-9473(99)00087-0

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Summary:Recent algorithms for nonlinear mixed effects models can also be used, after some modification, to fit individual differences multidimensional scaling models in which the subject weights are random effects. The models we propose here have several advantages over models which do not use random effects. For example, unlike traditional models, the number of parameters does not increase with the number of subjects, and, because the distribution of the subject weights is modeled, generalization of results to the sampled population of subjects is immediate. These models also have some disadvantages. Here, we discuss the proposed random effects model, give a computational algorithm for fitting the model, describe our experiences with this algorithm, and discuss potential generalizations to other multidimensional scaling models.
ISSN:0167-9473
1872-7352
DOI:10.1016/S0167-9473(99)00087-0