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

Lessons Learned: What Jack Should Have Asked His Evaluator

• Ask the evaluator to identify the hypotheses for the test, the assumptions, the level of significance, and reasons it was chosen.
• Explain statistical claims in plain English. Who are the statistics really for anyway?
• How was the comparison group selected? What variables were selected to determine that the two groups were comparable at pretest?

Full checklist of information to be provided by Program Evaluator.