How to explore within-person and between-person measurement model differences in intensive longitudinal data with the R package lmfa.

ABSTRACT: Intensive longitudinal data (ILD) have become popular for studying within-person dynamics in psychological constructs (or between-person differences therein). Before investigating the dynamics, it is crucial to examine whether the measurement model (MM) is the same across subjects and time and, thus, whether the measured constructs have the same meaning. If the MM differs (e.g., because of changes in item interpretation or response styles), observations cannot be validly compared. Exploring differences in the MM for ILD can be done with latent Markov factor analysis (LMFA), which classifies observations based on the underlying MM (for many subjects and time points simultaneously) and thus shows which observations are comparable. However, the complexity of the method or the fact that no ope

SUBMITTER: Vogelsmeier LVDE 

PROVIDER: S-EPMC10439104 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature