I read in a book that a study was done by Myers that involved ONLY 399 people [all 11th-12th grade students from the same school] and 26.9% were Introverts. However there was a study in 1998 and another done in 2001 with a much larger amount [ 3,009 randomly selected for the '98 study and 1,378 for the '01 study, also randomly selected.] that ended with 57% Introverts.
The initial study done by myers has been quoted numerous times in various texts without pointing out the exact figures where the study comes from nor any mention of the 1998 or 2001 studies [which, I remind you, had MORE people that were chosen at random].
So I'm curious as to what the demographics are HERE.