Mediation Analysis: featuring JASP

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0:00 An example
3:10 Mediation in general
4:12 Causal claims
8:48 Mediation analysis is just some linear regressions
11:00 Barron-Kenny approach
15:32 Terms
18:01 Standardisation
20:03 An example with simulated data
25:49 Multiple mediators
26:19 Lavaan model syntax
27:24 Criticisms of mediation analysis
29:35 Bayesian parameter estimation vs Bayesian Hypothesis Testing
31:53 Resources and references

Software Resources
JASP: https://jasp-stats.org (Activate the SEM module)
Useful blog post: https://jasp-stats.org/2020/03/12/med...
Lavaan: https://www.lavaan.ugent.be
Blavaan (i.e. Bayesian lavaan) https://faculty.missouri.edu/~merklee...
Bayesian estimation of mediation model on my GitHub: https://github.com/drbenvincent/pymc3...

References
Nuijten, M. B., Wetzels, R., Matzke, D., Dolan, C. V., & Wagenmakers, E.-J. (2014). A default Bayesian hypothesis test for mediation. Behavior Research Methods, 47(1), 85–97. http://doi.org/10.3758/s13428-014-0470-2
Wu, A. D., & Zumbo, B. D. (2007). Understanding and Using Mediators and Moderators. Social Indicators Research, 87(3), 367–392. http://doi.org/10.1007/s11205-007-9143-1
Yuan, Y., & MacKinnon, D. P. (2009). Bayesian mediation analysis. Psychological Methods, 14(4), 301–322. http://doi.org/10.1037/a0016972
Merkle, E. C., & Rosseel, Y. (2018). blavaan: Bayesian Structural Equation Models via Parameter Expansion. Journal of Statistical Software, 85(4), 1–30. http://doi.org/10.18637/jss.v085.i04