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Estimating Latent Correlations between Repeated Testings

Published online by Cambridge University Press:  01 January 2025

Erling B. Andersen
Erling B. Andersen*
Affiliation:
University of Copenhagen
*
Requests for reprints should be sent to Erling B. Andersen, Department of Statistics, University of Copenhagen, Studieszede 6, 1455 Copenhagen K, Denmark.
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Abstract

A model for longitudinal latent structure analysis is proposed. We assume that test scores for a given mental or attitudinal test are observed for the same individuals at two different points in time. The purpose of the analysis is to fit a model that combines the values of the latent variable at the two time points in a two-dimensional latent density. The correlation coefficient between the two values of the latent variable can then be estimated. The theory and methods are illustrated by a Danish dataset concerning psychic vulnerability.

Keywords

Latent correlationlongitudinal modelRasch modellatent structure analysis
Type
Original Paper
Information
Psychometrika , Volume 50 , Issue 1 , March 1985 , pp. 3 - 16
Copyright
Copyright © 1985 The Psychometric Society

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