12.8 The Correlation Coefficient and Coefficient of Determination

A look at the Pearson correlation coefficient (r), the coefficient of determination (r 2), some of their properties and a few examples. (This is discussed in the context of measuring the strength of the linear relationship between 2 variables.)

One of the data sets used is estimated from a figure given in:
Singer et al. (2004). Empathy for pain involves the affective but not sensory
components of pain. Science, 303:1157-1162.

4 thoughts on “12.8 The Correlation Coefficient and Coefficient of Determination”

  1. Mr Balka,

    First, I think you teaching style is great: concise, complete without being overwhelming, well spoken, very helpful. Im an undergrad at berkeley in my senior year and was told that I need a stats class to graduate. Math of any kind has never been very easy for me but you videos have changed that to some extent.

    Just wanted to take a second to let you know that (or maybe you already knew) that the 12.8 correlation coefficient video is “private” and won’t stream, Fyi.

    Keep up the great work!
    and thank you again


    • Hi Charles,

      Thanks for the kind words. I’m very glad I could be of help.

      I’ve been meaning to update this video, but I haven’t gotten a chance to yet. (There were a couple of things I didn’t love about it.) Thanks for the reminder — I’ll take another look and see if I want to release it or remake it.

      All the best.



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