Vegetarianism and intelligence

Higher IQ at age 10 years was associated with an increased likelihood of being vegetarian at age 30... IQ remained a statistically significant predictor of being vegetarian as an adult after adjustment for social class (both in childhood and currently), academic or vocational qualifications, and sex
- IQ in childhood and vegetarianism in adulthood
Kanazawa claims it's because the purpose of intelligence is to respond to new experiences; vegetarianism being evolutionarily "new" implies that only smarter people will accept it.

2 comments:

  1. What do you mean by adjustments for social class, academic qualifications, etc? Do you mean adjustments were made to their IQ to normalize it w.r.t. their social class / education /whatever?

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  2. @flywtink: For example, it might be that going to college convinces people to become vegetarian. So the relationship between intelligence and vegetarianism would only be accidental - the real relationship would be between education and vegetarianism.

    So the adjustments are to control for these things.

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