Skip to main content
Article
Analyzing the convergent validity of states and traits: Development and application of multimethod latent state-trait models
Psychological Assessment
  • Christian Geiser, Utah State University
  • Delphine S. Courvoisier, University of Geneva
  • Fridtjof W. Nussbeck, Bielefeld University
  • Michael Eid, Freie Universität Berlin
  • David A. Cole, Vanderbilt University
Document Type
Article
Publisher
American Psychological Association
Publication Date
9-1-2008
DOI
10.1037/a0012812
Abstract
The analysis of convergent and discriminant validity is an integral part of the construct validation process. Models for analyzing the convergent and discriminant validity have typically been developed for cross-sectional data. There exist, however, only a few approaches for longitudinal data that can be applied for analyzing the construct validity of fluctuating states. In this article, the authors show how models of latent state-trait theory can be combined with models of multitrait-multimethod analysis to develop a model that allows for analyzing convergent and discriminant validity in time: the multimethod latent state-trait model. The model allows for identifying different sources of variance (trait consistency, trait-method specificity, occasion-specific consistency, occasion-specific method specificity, and unreliability). It is applied to the repeated measurement of depression and anxiety in children, which was assessed by self and teacher reports (N = 375). The application shows that the proposed models fit the data well and allow a deeper understanding of method effects in clinical assessment.
Citation Information
Christian Geiser, Delphine S. Courvoisier, Fridtjof W. Nussbeck, Michael Eid, et al.. "Analyzing the convergent validity of states and traits: Development and application of multimethod latent state-trait models" Psychological Assessment Vol. 20 Iss. 3 (2008) p. 270 - 280
Available at: http://works.bepress.com/christian-geiser/18/