Alceste
Vagabond
How does this square with the substantial increase in the academic performance of girls (particularly in relation to boys) over the last few decades?
IIRC, studies on the effects of self objectification generally look at what the consequences are for those girls who are most affected by it. Not all girls will react the same way. While many are demeaned by the acceptance of rape culture, many others seem to be empowered by the rejection of it, if my Facebook feed of former students is any indication.
Studies of academic performance include the whole population. Both the damaged and the empowered. Perhaps there are more of the latter than the former, or perhaps there is more than one single factor to consider when it comes to academic performance overall.
IMO, it would be better if girls didn't have to make that choice of accepting a lack of worth beyond their appearance to "fit in", or rebelling against all of society because that particular role (and there aren't many others on offer) does not appeal them.