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Contents
Part Ⅰ. Making the case for opportunistic experiments 6
What are opportunistic experiments? 6
Opportunities for experimentation in education 7
Part Ⅱ. Recognizing potential opportunistic experiments 9
Step 1. Look for potential random assignment opportunities 10
Step 2. Consider whether the research opportunity aligns with the research agenda 10
Step 3. Assess the feasibility of the research project 10
Part Ⅲ. Conducting opportunistic experiments 17
Step 1. Identify sites 17
Step 2. Recruit participants 18
Step 3. Conduct random assignment and monitor compliance 18
Step 4. Collect data 20
Step 5. Analyze data and report findings 20
Implications: the low cost of doing opportunistic experiments-and the potentially high cost of not doing them 21
Appendix. Key questions to consider when recognizing and conducting opportunistic experiments 22
Part Ⅰ. Recognizing the potential for opportunistic experiments 22
Step 1. Look for potential random assignment opportunities 22
Step 2. Consider whether the research opportunity aligns with the research agenda 22
Step 3. Assess the feasibility of the research project 22
Part Ⅱ. Conducting opportunistic experiments 23
Step 1. Identify sites 23
Step 2. Recruit participants 23
Step 3. Conduct and monitor random assignment 24
Step 4. Collect data 24
Step 5. Analyze data and report findings 24
References 25
Figure 1. Theory of change for the Free Application for Federal Student Aid Completion Project 12
Boxes
Box 1. Close partnerships between researchers and district administrators 7
Box 2. Case study of a literacy intervention pilot in New York City 8
Box 3. Case study of a randomized rollout of the Free Application for Federal Student Aid Completion Project 8
Box 4. Case study of a lottery-based evaluation of Knowledge is Power Program charter schools 9
Box 5. Outcomes from state longitudinal data systems 14
Box 6. Exploring long-term outcomes 14
Box 7. Estimating the size of a research sample 16
Box 8. Small sample sizes can still provide useful information 16
Box 9. Encouraging participants to participate in research using random assignment 18
Box 10. Accommodating exclusions from random assignment 19
Box 11. Monitoring randomization in a lottery study 20
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