The Quality Of Evidence In Preclinical Medical Education Literature: A Systematic Review

To practice effective evidence-based teaching, the need for well-designed studies that describe outcomes related to educational interventions is critical. The quality of the literate in basic science disciplines is unknown. The study objective was to conduct a systematic review of the literature to assess study design in articles describing innovations in preclinical medical education.

The authors searched PubMed for all articles published in English between 2000 and 2017 describing interventions in preclinical medical education related to anatomy, physiology, and biochemistry. Articles were scored using a modification of the Medical Education Research Study Quality Instrument.

Of the 817 articles identified, 177 met final inclusion criteria (75 anatomy, 86 physiology, and 16 biochemistry). Laboratory, student-driven, and online activities were the most frequently reported. The average score for all papers was 15.7 (27 points possible). More than 80% reported experiences with one cohort of students and >97% involved only one institution. Only 25-49% of reports utilized a comparison (control) group. Proper statistical models for analysis of results were used in only 44-62% of papers.

Manuscripts had a strong tendency toward single institutional studies that involved one cohort of students. The use of a control/comparison group when assessing effectiveness was seen in <50% and nearly all reported outcomes solely in the form of student satisfaction or factual recall/skill performance.