293
9
The Paired-Samples t Test
LEARNING OBJECTIVES
Recognize the different types of dependent samples.
Calculate and interpret a paired-samples t test.
CHAPTER OVERVIEW
This is the third, and final, chapter on t tests. Chapter 7 covered a t test for comparing a sample mean to a specified value, the single-sample t test. Chapter 8 moved to a t test for comparing the means of two independent samples. Now, in Chapter 9, we add a paired-samples t test, for comparing the means of two dependent samples.
9.1 Paired Samples
9.2 Calculating the Paired-Samples t Test
9.3 Interpreting the Paired-Samples t Test