Abstract This paper focuses on econometrics pedagogy. It demonstrates the importance of including probability weights in regression analysis using data from surveys that do not use simple random samples (SRS). We use concrete, numerical examples and simulation to show how to effectively teach...

Colleges want to increase retention and graduation rates, but they are also under pressure to control costs. Increasing class size is a common method to reduce per student costs. This paper examines the relationship between class size and student achievement. Using data from a selective liberal...