Please visit https://www.theeffectbook.net to read The Effect online for free, or find links to purchase a physical copy or ebook.
The Effect is a book about research design and causal inference. How can we use data to learn about the world? How can we answer questions about whether X causes Y even if we can't run a randomized experiment? The book covers these things and plenty more. These videos are meant to accompany the book, although they can also be viewed on their own.
This video relates to material found in Chapter 13 of the book.
A version of this video without background music can be found here: https://youtu.be/LcR2i1S4uTg
This video covers the fascinating and terrifying world of interaction terms. How can we reflect the idea that the effect of one variable on another might be different *depending on the values of a third variable*? Interaction terms! Crucial technology. Let's figure out how to use them.
