This 3-day course will be aimed at researchers and other analysts who want to know more about longitudinal research design, and how longitudinal research can be used to address issues in evaluation, as well as developing practical skills in longitudinal data analysis. The course will provide students with a better understanding of a range of longitudinal research methods, including first-difference, difference-in-difference, fixed-effects and random-effects models. The course will help students appreciate the strengths and limitations of longitudinal research. The course will have a strong practical emphasis, with regular computer sessions using STATA. However, no prior knowledge of STATA will be assumed.