Significant

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XKCD cartoon showing how, if you torture the data enough, they will confess to anything.

  • Format Cartoons
  • Language/s English
  • Target Audience Self-directed learning
  • EBM Stage 3 - Appraising evidence
  • Duration <5 mins
  • Difficulty Introductory

Key Concepts addressed

Details

If statistical tests are applied repeatedly to treatment outcome measures in different subgroups, one in 20 – on average – will yield a ‘statistically significant’ association <0.05.

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