One of the most widely misunderstood statistical concepts is regression to the mean. In this video tutorial, I address common false beliefs about regression to the mean and answer the following questions:
- What is regression to the mean?
- Do variables become less variable each time they are measured?
- Does regression to the mean happen all the time or just in certain situations?
- Does repeated testing cause people to come closer and closer to the mean?
- How is regression to the mean relevant in death penalty cases?
