Social experiments are powerful sources of information about the effectiveness of interventions. In practice, initial randomization plans are almost always compromised. Multiple hypotheses are frequently tested. "Significant" effects are often reported with p-values that do not account for...

Improving school-to-work transitions -- Transitions to work for racial, ethnic, and immigrant groups -- Participation in career and technical education and school-to-work in American high schools -- Do school-to-work programs help the "forgotten half"? -- Learning by doing career academies --...