CONTENTS

Table of Contents
Introduction

1. Descriptive Statistics in Evaluation
2. Subgroup Analysis
3. Variable - Are They Related?
4. Correlation
5. The t-Test of Difference Between Means

Supplements
Resources
Glossary

Wading Through the Data Swamp:
Program Evaluation 201

Objectives

After completing Module 5, you will be able to:

• Identify two different types of t-tests.
• Understand how to assess mean differences between groups using t-test statistics.
• Evaluate the t-test results to determine whether the outcomes have been obtained.