“A 4.0 does signal something significant, that that student is good,” said Stuart Rojstaczer, a former Duke University professor who has studied grade inflation for years. “ A 3.7, however, doesn’t. That’s just a run-of-the-mill student at any of these schools.”

I disagree with this statement, at Carnegie Melllon I noticed that a lot of 4.0's were engineered. Students avoid taking hard classes, avoid difficult requirement classes by taking at an easier university, avoid challenging themselves outside of their major.