Chapter Introduction

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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