Did the Wharton School Manipulate Their Reporting to Get Ranked as the #1 Business School?

Of course Wharton manipulated factors to affect their rankings. All schools do.

Rankings are based off an equation that is more or less predictive of what we expect to see. Then, each school looks at these factors and tries to tweak the numbers as much as it can—offering some smaller classes to tweak the student/faculty ratio, etc.