Lecture video for “Data Sense: An Introduction to Statistics for the Behavioral Sciences” by Barton Poulson. This video covers Chapter 04: Variability, Section 02: The Range. It explains how the range, which is the difference between the maximum and minimum scores in a distribution, can be used as a simple indicator of variability but that it is subject to many potential problems. The book and complete set of videos may be purchased at http://kendallhunt.com/poulson/.