This video is a short introduction to the concept of effect size, focusing on the two main measure of effect size, r and d.
This is part of a lecture series (5 videos) covering several supplemental topics in statistics.
The PowerPoint and data sets can be downloaded at:
https://www.researchgate.net/profile/...
If you have not installed the Data Analysis Toolpak (which comes free with Excel), the following video will show you how to do it.
Windows: • How to Install the Statistics Toolpak (Dat...
Mac: • Installing the Statistics Toolpak (Data An...