Although academic ability is the most important explanatory variable in studies of student learning, researchers control for it with a wide array and combinations of proxies. The authors investigated how the proxy choice affects estimates of undergraduate student learning by testing over 150 specifications of a single model, each including a…

Most studies of the determinants of understanding in economics focus on performance in a single course or standardized exam. Taking advantage of a large data set available at the U.S. Naval Academy (USNA), the authors examined the performance of economics majors over an entire curriculum. They found that gender was not a significant predictor of…