P-values and the role of chance

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• Format Videos
• Language/s English
• Target Audience Further education
• EBM Stage 3 - Appraising evidence
• Duration 5-15 mins
• Difficulty Intermediate

Key Concepts addressed

• 2-3g Statistical significance is not the same as importance
• 2-3d Fair comparisons with few people or outcome events can be misleading
• 2-3f Confidence intervals should be reported

Details

Gilbert Welch’s 10-min video on p-values and assessing the likelihood that a difference between treatments is due to chance.