Research Resources

Our library of practical resources is available for researchers undertaking randomized evaluations and those teaching the technique to others. The resources presented here are curated by J-PAL in partnership with Innovations for Poverty Action (IPA).

Slides: Why randomize?

Learn about why, when properly designed and conducted, randomized evaluations provide the most credible method of estimating program impact in these slides from J-PAL's Executive Education Course.

Slides: How to Randomize

Learn about randomization methods in these slides from J-PAL's Executive Education Course.

Slides: Sampling and Sample Size

Learn how sample size and other factors affect statistical power in these slides from J-PAL's Executive Education Course.

Slides: Threats and Analysis

Learn about threats to inference and ways to design field experiments to guard against them in these slides from J-PAL's Executive Education Course.

Slides: Cost-Effectiveness Analysis and Scaling Up

Slides from the cost-effectiveness analysis lecture.

Exercise: Doing Power Calculations

This guide explains the trade-offs in designing a well powered randomized trial. It contains exercises and a step-by-step guide that demonstrates how varying experimental features can affect the statistical power of a study.

Policy Briefcase: Bias against female policymakers in India

In a J-PAL study that tried to measure bias against female policymakers in India.

Nonexperimental Versus Experimental Estimates of Earnings Impacts

Paper by Steven Glazerman, Dan Levy and David Myers, published May 2003.