Michael Sylvester wrote:
> does the correlation still hold that students and profs that wear glasses
> tend to be above average in intelligence than those who don't?
It's a logical correlation in that a higher percentage of individuals with
above average intelligence would be likely to notice minor visual problems
when reading, and thus obtain glasses, than would be true of those with
lower than average intelligence, who are less likely to be serious readers.
I doubt it would count for a great deal of difference, but it should account
for some. In addition, because individuals who wear glasses tend, in
American society, to be perceived as more intelligent, a number of social
influences would work to encourage them to seek out more academic pursuits
and thus to develop their intellectual skills in ways that measure
positively on tests such as the Welcher.
> I am not sure about contact lenses?
It should make no difference in practice, unless the wearer did not start
with glasses as a youth and "graduate" to contacts--in which case, s/he
would have had no greater social influences that would direct him/her toward
intellectual pursuits than would the individual with 20/20 vision
uncorrected.
Rick <--who has always worn glasses :-)
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