^^ My sorority had the same type of test banks as well as older sisters who may have already taken a particular class and who could help younger girls prepare for exams. There is absolutely nothing dishonest or unethical about that. We also gave awards each term to the members and pledges who had attained the highest gpa, as did all the other Greek organizations on campus. In addition, the university IFC and Panhellenic organizations published lists each term (and still do) of each GLO’s current gpa, ranked from the top to the bottom. There was significant status attached to the groups appearing at the top of the lists.
So sorry, Cobrat. Your “theories” about how the Greek’s higher average gpa is somehow invalid, don’t hold water.