Mediation Analysis 

This video provides a conceptual overview of mediation analysis, including different methods for estimating indirect effects using the Sobel test and percentile bootstrapping.
To learn how to estimate a mediation model in R using the lavaan package, check out this video: • Mediation Analysis in R
For a conceptual overview of path analysis, check out this video: • Path Analysis
To learn how to estimate a path model in R using the lavaan package, check out this video: • Path Analysis in R