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Measuring Latent Quantities

Published online by Cambridge University Press:  01 January 2025

Roderick P. McDonald*
Affiliation:
The University of Sydney
*
Requests for reprints should be sent to Roderick P. McDonald, The University of Sydney, Sydney, Australia. E-mail: rmcdonal@cyrus.psych.illinois.edu

Abstract

A distinction is proposed between measures and predictors of latent variables. The discussion addresses the consequences of the distinction for the true-score model, the linear factor model, Structural Equation Models, longitudinal and multilevel models, and item-response models. A distribution-free treatment of calibration and error-of-measurement is given, and the contrasting properties of measures and predictors are examined.

Information

Type
Original Paper
Copyright
Copyright © 2011 The Psychometric Society

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