This workshop, presented in French, will be held in person at QICSS. It aims to introduce participants to both basic and advanced concepts of structural equation modeling using R and LAVAAN. By the end of this training, participants will be able to specify, estimate, and evaluate structural equation models. They will also learn to use specific LAVAAN functions to perform confirmatory factor analyses and handle multi-group models. This training is intended for graduate students as well as academic and government researchers.