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

Welcome to Module 3. Now that you have learned about some of the benefits and limitations of descriptive statistics, let's learn about how descriptive statistics can be used to investigate more thoroughly the relationship between variables. We will also begin discussing inferential statistics.

Objectives

After completing Module 3, you will be able to:

• Understand how to construct contingency tables.
• Identify four levels of measurement.
• Understand when it is appropriate to use chi-square.
• Understand how the chi-square statistic is calculated.
• Construct null and research hypotheses.