Kapitel in diesem Buch

1. Frontmatter i
2. CONTENTS v
3. PREFACE vii
4. ABBREVIATIONS AND ACRONYMS ix
5. 1 The Experimental Approach 1
6. 2 Why Randomize? 24
7. 3 Asking the Right Questions 66
8. 4 Randomizing 98
9. 5 Outcomes and Instruments 180
10. 6 Statistical Power 241
11. 7 Threats 298
12. 8 Analysis 324
13. 9 Drawing Policy Lessons 386
14. APPENDIX: RANDOMIZED EVALUATIONS REFERENCED IN THIS BOOK 421
15. GLOSSARY 443
16. INDEX 453