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Medical students forget a significant amount of basic science knowledge within months of finishing their first year. Most students fall below the minimal competency level required for second-year studies, highlighting a need for improved learning strategies.

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Area of Science:

  • Medical Education
  • Cognitive Science

Background:

  • First-year medical students typically perform well in coursework and exams.
  • Long-term retention of basic science content is not well-understood.
  • Faculty set minimal competency levels for progression.

Purpose of the Study:

  • To assess long-term retention of basic science content among medical students.
  • To evaluate retention in relation to minimal competency standards.
  • To identify the extent of knowledge loss after a 5-11 month delay.

Main Methods:

  • A cohort of 27 medical students took a "retention exam" before starting their second year.
  • The exam consisted of 60 multiple-choice questions (MCQs) previously answered.
  • Retention was measured after a 5-11 month delay between initial testing and the retention exam.

Main Results:

  • Initial mean performance on MCQs was 82.8%, dropping to 50.1% on the retention exam.
  • Mean knowledge retention was 60.4%, with individual scores ranging from 37% to 81%.
  • 85% of students (23/27) scored below the minimal competency level for second-year studies.

Conclusions:

  • Significant forgetting of basic science occurs during the transition from the first to the second year of medical school.
  • Most students do not retain sufficient knowledge to meet minimal competency standards.
  • Medical educators should implement strategies promoting long-term learning, such as retrieval practice, interleaving, and spacing.