Structural Equation Modelling in R

This tutorial introduces structural equation modelling (SEM) in R using lavaan, covering confirmatory factor analysis, path diagrams, model specification, global fit indices (CFI, RMSEA, SRMR), and model comparison using AIC and BIC. It is aimed at researchers in psycholinguistics, applied linguistics, and the social sciences who need to model complex relationships among multiple variables simultaneously. This tutorial is part of the Language Technology and Data Analysis Laboratory (LADAL), a free, open-access research infrastructure at the University of Queensland. LADAL provides tutorials, tools, and courses for researchers working with language data. All materials are freely available at https://ladal.edu.au and are part of the Language Data Commons of Australia (LDaCA), funded by ARDC and NCRIS.