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WrongBot comments on Forager Anthropology - Less Wrong
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No, body fat percentage doesn't necessarily say anything about genetic fitness, since bodyfat levels are highly dependent on diet. Show me a tribe that says asymmetrical faces, high waist:hip ratio, or pockmarked skin are attractive female traits. Those are real claims of "objective subjectivity" made by evolutionary psychologists. You seem to be unwilling to address their actual claims.
The main problem I have with this series, is that you sort of make vague criticisms about a "standard account" without being precise and specific about what you think is the correct account.
This study describes a tribe that finds a high waist:hip ratio most attractive. The authors argue that waist:hip ratio signals weight, and that heavier females are more adaptive in environments where obesity is not a problem (like the human EEA). I'm not sure that I buy that argument, but I'm not ready to rule it out either.
This followup study suggests that the methodology was misleading - attractiveness was evaluated from frontal pictures rather than the WHR measurement that is correlated with health, and the reported preferences changed when examining profile pictures.
Thanks for tracking that down. The Hadza still seem to prefer a significantly higher ratio than Americans so, but yes, the effect is much less extreme.
I have a couple methodological problems with both studies, though. The earlier study found a frontal WHR preference around .9 and tested the .4-1.0 range, which may mean that subjects who would have selected a frontal WHR greater than 1.0 had their preference undervalued.
The study on profile WHR only offered choices in the .55-.75 range, which seems problematic if most Hadza prefer WHRs above .8. More importantly, the illustrations used vary profile WHR by adjusting buttock projection and leaving waist-size identical, which makes weight a huge confounding factor.
Drawing strong conclusions from this evidence doesn't seem possible.
This issue is discussed in some depth in my Ev. Psych. textbook: Evolutionary Psychology: The New Science of the Mind by David Buss. The Hazda women actually have a higher average WHR compared to the global average. Hazda men still prefer a WHR significantly lower than average for Hazda women.
Buss concludes by saying that preference for a low WHR is universal, but modulates somewhat based on the average WHR of local women. He also mentions that high-status men care more about WHR than low status men, which seems to fit obviously with the normal Ev. Psych account.
Which should at least be unsurprising due to anchoring.
Link seems to be broken?
Eep, sorry. Should be working now.