People Severely Underestimate — or Lie About — How Much They Drink
The researchers surveyed over 40,000 people with standard alcohol survey questions about their quantity and frequency of alcohol consumption — “How many drinks have you had in the past month?” and so on. But in a smart twist, they then asked a more immediate question: “How many drinks did you have yesterday?” This method is useful for detecting under-reporting because of the improbabilities it reveals.
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