# Parametric g-formula for Testing Time-Varying Causal Effects: What It Is, Why It Matters, and How to Implement It in Lavaan

> Research article (Multivariate Behavioral Research, 2024) · cited 15× · AI/ML

**Wikidata**: [openalex:W4400319482](https://www.wikidata.org/wiki/openalex:W4400319482)  
**Source**: https://4ort.xyz/entity/parametric-g-formula-for-testing-time-varying-causal-effects-what-it-is-why-it-matters-and-how-to-implement-it-in-lavaan