Chapter 3, Problem 2E

Some variables, such as height, can be measured directly, and the measurement procedure is usually quite straightforward. Other variables—for example, hunger, motivation, or attitude about the death penalty—are more difficult to measure.

1. Describe one procedure that might be used to measure hunger.

Use the procedure you described in (a) to explain why there may not be a one-to-one relationship between a variable and the procedure used to measure it.

Choose another variable and identify different options for measuring it.