Proficiency development for graduating medical students, using skills-level-appropriate mastery learning versus traditional learning for chest tube placement: Assessing anxiety, confidence, and performance.

Background: Mastery learning is an effective educational tool to assess basic procedural skill proficiency and may also be beneficial for more complex skills along the continuum of surgical training. In addition, anxiety and confidence have effects on cognitive and decision-making performance, both in educational and clinical settings. This study evaluates anxiety and confidence in a skills-level-appropriate mastery learning module for chest tube insertion in graduating medical students.

Methods: A 2-week intern preparatory course was held 2 consecutive years, with 10 and 14 students, respectively. Learners completed a pretest on day 1, didactic session and supervised deliberate practice followed by a Posttest on day 4, and a retention test on day 10. Year one used a traditional educational methodology, and year two provided for remediation as per mastery learning methodology. The chest tube scoring checklist was validated by faculty trauma surgeons to reflect an intern-appropriate skills level. Before and after each test, learners reported state anxiety. Immediately after each test, learners also completed a confidence scale.

Results: No learners in either year achieved mastery on the pretest. A total of 40% of the learners achieved the mastery standard on the posttest in year one. All (100%) of the learners achieved the mastery standard after the posttest in year two. Overall, after state anxiety decreased significantly in both years, confidence increased significantly in year two.

Conclusion: A skills-level-appropriate mastery learning module resulted in higher performance and increased confidence compared with a traditional education model for chest tube placement for incoming surgical interns.