Topic 4 deals with measures of variation or dispersion. Suggested Readings Healey, Chapter 4: Measures of Variation
 Bennett, Chapter 4: Central Tendency & Dispersion
Lesson Objectives
 understand measures of dispersion
be able to determine appropriate measures of dispersion for variables
 understand how to apply central tendency and dispersion as related concepts
PPTs
Topic 4.1: Measures of Dispersion ppt
SupplementsSuggested Homework
Objectives Check What are the three main measures of central tendency?
 What are the main measures of variation or dispersion?
Suggested SPSS Homework
 be able to recode a variable to create new variables
 be able to report appropriate measures of central tendency and dispersion in SPSS
