This document discusses three potential methods for evaluating the effectiveness of a new educational module (PEM) study: 1. Historical control method compares pre- and post-test scores before and after module implementation but has delayed rollout and is quasi-experimental. 2. Randomized control group method assigns participants randomly to control or intervention groups but requires randomization and potential denial of modules. 3. Geographic control method uses a separate control institution but cannot guarantee similarities between institutions. It allows full rollout without randomization within each institution.