It would be pretty darned difficult to make a standardized test "match" folks who are illiterate or just barely literate, which this Granny seems to have been.

It would be pretty darned difficult to make a standardized test "match" folks who are illiterate or just barely literate, which this Granny seems to have been. BTW, literacy rate in South Korea is around 98% (most of the remainder being old women like Ms. Cha who couldn't get education during colonial times) so I don't think the test would have been too inaccessible to the populace in general.