Practice retrieval (i.e. testing) has been shown to be one of the most potent methods of learning. Impactful learning takes place when individuals practice testing within a simulated examination setting. The ‘testing effect’ is a proven phenomenon that occurs as individuals progress over time resulting in high scoring. TrueLearn leverages the ‘testing effect’ to reinforce important principles while developing improved problem solving skills necessary to optimize performance on higher-order examinations.