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

Introduction

In Module 1, we explored the kids' drug use before they entered the Cool After School Program (pretest). Now Jack wants to understand why the evaluator said his program was not successful in reducing drug use. In other words, he wants to learn more how the kids' drug use changed after being in the program.