Thursday, September 25, 2014

Kristoffer Magnusson's" Understanding correlations, an interactive visualization"

Kristoffer Magnusson is a psychology graduate student with a background in web design and he is using his talents to create succinct, beautiful visualizations of statistical concepts. Below is a screen shot of his interactive tool for better understanding correlation and how it relates to shared variance (users can change the n-size and r and watch the corresponding changes in shared variance and the scatter plot). Follow Magnussen's work and statistical visualizations via @rpsychologist.

Special thanks to Randy McCarthy for recommending this resource!
Using the "Slide me" bar at the top, you can adjust the correlation in order to visualize the scatter plot, slope, and shared variance.