“…A vast body of empirical work has demonstrated the narrow limits of human working memory,15, 16, 17, 18 and CLT states that the design of education has to respect these limits 4, 5, 9, 11. Several empirical studies inspired by CLT12, 20, 21, 22, 24, 26, 27, 28 and reviews of practical implications of CLT4, 5, 10, 11, 19, 23, 25, 29, 30 have contributed to guidelines for the design of medical education. Simultaneously, several research groups have developed instruments for the measurement of cognitive load in a medical education context 22, 24, 26, 27, 28.…”