Claremont Evaluation Center's Professional Development Workshop Series in Evaluation and Applied Research Methods
What is the main difference between quasi-experiments and RCTs? How can I measure impact when establishing a control group is not an option?
In the second last webinar of the series, Dr. Howard White of the International Initiative for Impact Evaluation (3ie), covers the basics of quasi-experiments.
Regression Discontinuity Design (RDD) is a quasi-experimental evaluation option that measures the impact of an intervention, or treatment, by applying a treatment assignment mechanism based on a continuous eligibility index which is a variable with a continuous distribution.