Basic Epidemiology

Basic Epidemiology

At a glance


Essential skills

  • Determine study type from question stem information

  • Parse out biases and problems in study methodology

  • Consider ethics!


Knowledge Fundamentals

  • Study descriptors

  • Study types

  • Common biases of each study type

  • Reliability vs. validity

  • Internal validity vs. external validity

  • The epidemiologist’s bathtub!


On the MCAT

  • As with statistics, there may not be explicit epidemiology questions on the test but a basic knowledge of study types and biases will help you better understand passages and in the future, how most clinical studies are run.


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