Here's the data file they used. The University of Phoenix only has 72 data points. https://s3.amazonaws.com/ed-college-choice-public/Most+Recent+Cohorts+(Tre

Here's the data file they used. The University of Phoenix only has 72 data points. https://s3.amazonaws.com/ed-college-choice-public/Most+Recent+Cohorts+(Treasury+Elements).csv https://s3.amazonaws.com/ed-college-choice-public/Most+Recen... I can't find anything about methodology other than the fact that only students who receive federal financial aid may be included.