Threats to validity

Readings due before class on Monday, October 7, 2019

Required

• Chapter 9 in Impact Evaluation in PracticePaul J. Gertler et al., Impact Evaluation in Practice, 2nd ed. (Inter-American Development Bank; World Bank, 2016), https://openknowledge.worldbank.org/handle/10986/25030.
  
  
• Other readings TBA