Masked Relationships and Multicollinearity

In this video and R workbook I am “playing” with linear regression and I am trying to explain the concept of “controlling” for one variable (this is common in statistics, but I had hard time understanding it until I visualized the problem), masked relationships and multicollinearity.

The R script can be downloaded HERE.

I also highly recommend reading Statistical Rethinking book. It is great introduction to scientific reasoning, model building and Bayesian inferences.

Please be free to let me know if you have any questions or feedback. Hope this video will be useful to the students out there.

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