Study Designs17 minutes

Here's a sample video from our biostatistics and epidemiology section. Can you tell a cross-sectional study from a case-control or cohort study? Dr. Ryan's videos can help you study smarter for the USMLE Step 1 exam.

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Hovering over the video while it is playing will give you options to control the playback speed and quality. Press ? at any time to see keystrokes for video playback changes

Cross-sectional; Cohort; Case control. First Aid 2017: 246; First Aid 2018: 252; First Aid 2019: 256

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