WrongBot comments on Forager Anthropology - Less Wrong

11 Post author: WrongBot 28 July 2010 05:48AM

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Comment author: WrongBot 30 July 2010 02:29:04AM *  3 points [-]

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.

Comment author: RobinZ 30 July 2010 02:59:18AM 7 points [-]

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.

Comment author: WrongBot 30 July 2010 03:29:39AM 1 point [-]

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.

Comment author: knb 30 July 2010 03:55:44AM *  4 points [-]

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.

Comment author: thomblake 30 July 2010 01:27:48PM 1 point [-]

Which should at least be unsurprising due to anchoring.

Comment author: knb 30 July 2010 02:51:15AM *  0 points [-]

Link seems to be broken?

Comment author: WrongBot 30 July 2010 02:58:30AM 0 points [-]

Eep, sorry. Should be working now.