Psychometrics from the Ground Up: 5. Expected Value and Variance

A video tutorial about Expected Value and its relationship with variance:

Topics Covered:

• Some Rules of Expected Value Computations
• Measuring Variability Using Expected Values
• The Relationship between the Normal Distribution and the Chi Square Distribution
• Raw Moments
• Central Moments
• The 2nd Central Moment (i.e., Variance) in Terms of Raw Moments