This course proposes a hands-on and intuitive approach to designing and conducting a randomised evaluation. In the first half of the course, we will discuss reasons for undertaking randomised evaluations; how to design the randomised experiment to ensure it answers the question(s) of interest (including issues of statistical power and sample size calculation); how to deal with threats to randomisation (e.g. attrition, spill-overs). In the second half of the course, we will discuss practical issues raised by primary data collection, including how to best measure outcomes of interest; how to design good tools and how to conduct and manage fieldwork. We will also discuss the ethics of randomised policy evaluations.