Cognitive Assessment, Death Penalty, Psychometrics, Statistics, Tutorial, Uncategorized, Video

Video Tutorial: Misunderstanding Regression to the Mean

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:

  1. What is regression to the mean?
  2. Do variables become less variable each time they are measured?
  3. Does regression to the mean happen all the time or just in certain situations?
  4. Does repeated testing cause people to come closer and closer to the mean?
  5. How is regression to the mean relevant in death penalty cases?