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Textbook example of Self-Selection and Survival Biases at work to completely invalidate results.
by kweinber 13y ago
Textbook example of Self-Selection and Survival Biases at work to completely invalidate results.
- gwern 13y ago"Data drawn from years 2001 to 2004 of the National Survey on Drug Use and Health consisted of 130,152 respondents, randomly selected to be representative of the adult population in the United States."