Mixed methods approach to understanding the influence of changes in successive versions of the advanced trauma life support training program on student performance.

BACKGROUND:The Advanced Trauma Life Support course is the American College of Surgeons' standard of care for physicians who provide initial care to trauma victims. In addition to content updates, Advanced Trauma Life Support version 10 adopted contemporary learning theory and practice into the format and conduct of the training. METHODS:The study used a mixed-methods approach wherein a one-group post-test-only study of student and student refresher exam score differences was followed up with a faculty survey to qualitatively explore the quantitative findings. Mann-Whitney U tests were used to test the null hypotheses that student and student refresher test scores on version 9 (2018) and version 10 (2019) were the same. χ2 tests of independence were conducted to test the null hypotheses that student and student refresher initial assessment pass rates under versions 9 and 10 were the same. Faculty survey responses were analyzed descriptively. RESULTS:For the student written tests, the null hypothesis was retained. For the student refresher written tests the null hypothesis was rejected; the 2019 cohort performed worse than the 2018 cohort. Student initial assessment and student refresher initial assessment pass rates in 2018 and 2019 were statistically the same. The majority of faculty reported less motivation for teaching version 10. CONCLUSION:Although a quadrennial review of the format and conduct of Advanced Trauma Life Support courses above and beyond content updates is appropriate, it may be prudent to require strong evidence of improved student performance and value before implementing changes to the training.