File talk:Variable interactions.png

I like this. Any vague diagram where I can determine the meaning without being able to read the text is an effective communicator.

On the other hand, I can't read the text, which is a problem. ikanreed You probably didn't deserve that 21:03, 17 January 2017 (UTC)
 * Came from An introduction to psychometric theory with applications in R, Chapter 5. Uploaded larger version. 21:58, 17 January 2017 (UTC)