Cherry-picking, statistical adjustment, and fishing expeditions

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- Alex Hutchinson (@sweatscience)

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My Jockology column in this week’s Globe and Mail takes a look at three questions:

  1. How do cigarettes help marathoners run faster?
  2. Why does eating red meat cause car crashes?
  3. Does caffeine cause breast cancer?

In each case, I analyze studies that seem to “prove” these surprising findings, and identify the errors (cherry-picking data, inadequate statistical adjustment, and fishing expeditions) that lead to these conclusions. Basically, it’s a “how to assess medical research” primer. Read the whole thing here.

(Hat tip to Travis Saunders for his blog post at Obesity Panacea about the smoking study.)

5 Replies to “Cherry-picking, statistical adjustment, and fishing expeditions”

  1. @jb: Ha! Awesome — I recommend everyone click on the xkcd link for a good laugh (and concise demonstration of the problem with fishing expeditions).

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