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Occupational stress theories are rooted in the dynamic nature of the stress process, but few researchers examine intraindividual changes in the stress and well-being process. Analyses of intraindividual change over time enable researchers to evaluate theoretical propositions and build models that may be misspecified by cross-sectional data. We introduce a longitudinal data analysis method that can be used to advance stress theories and more accurately evaluate current organizational interventions. Specifically, latent difference score (LDS; JJ McArdle, 2001, A latent difference score approach to longitudinal dynamic structural analysis. In R. Cudek, S. DuToit, & D. Sörbom, Eds., Structural equation modeling: Present and future, pp. 342–380, Lincolnwood, IL: Scientific Software International) modeling has recently emerged as a versatile tool for investigating intraindividual change in measured variables in clinical …