Pooja Agarwal discusses the science of retrieval practice on episode 184 of the Teaching in Higher Ed podcast.

Lyle, K. B., & Crawford, N. A. (2011). Retrieving essential material at the end of lectures improves performance on statistics exams. Teaching of Psychology, 38(2), 94-97.
Roediger III, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological science, 17(3), 249-255.
Kromann, C. B., Bohnstedt, C., Jensen, M. L., & Ringsted, C. (2010). The testing effect on skills learning might last 6 months. Advances in health sciences education, 15(3), 395-401.

Roediger III, H. L., Agarwal, P. K., McDaniel, M. A., & McDermott, K. B. (2011). Test-enhanced learning in the classroom: long-term improvements from quizzing. Journal of Experimental Psychology: Applied, 17(4), 382.
Agarwal, P. K., Karpicke, J. D., Kang, S. H., Roediger, H. L., & McDermott, K. B. (2008). Examining the testing effect with open‐and closed‐book tests. Applied cognitive psychology, 22(7), 861-876.
Retrieval Practice website

The Science of Retrieval Practice

Teaching in Higher Ed