Think About What You Learned in Chapter 4 About Indexes

Essay

Think about what you learned in Chapter 4 about indexes that were used to capture the concept of substance abuse. What are some types of questions or indicators that would be most important to include in an index in order to measure the concept of substance abuse? Then think about if you just asked one of your questions or included only one indicator in your study. Which type of validity measure would you be unable to achieve by using just one question to capture substance abuse? Which type of reliability method would you be unable to use by using just one question to capture substance abuse?