A Study of Latent State-Trait Theory Framework in Piecewise Growth Models.

ABSTRACT: Latent state-trait (LST) theory provides a psychometric framework that facilitates the measurement of long-term trait change and short-term state variability in longitudinal data. While LST theory has guided the development and extension of linear latent growth models within its theoretical framework, the integration of piecewise growth models (PGMs) into the LST theory framework remains uninvestigated. PGMs are well suited for modeling nonlinear developmental processes comprised of distinct stages, which frequently arise in psychological and educational research. Their ability to capture phase-specific changes makes them a useful tool for applied and methodological researchers. This paper introduces a novel measurement approach that integrates PGMs into the framework of LST theory by pres

SUBMITTER: Heo I 

PROVIDER: S-EPMC12264255 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature