The Washington Monthly has an entirely different rating system, comprised of only three categories. The first is social mobility, which is based off of the percentage of students receiving Pell Grants and the predicted graduation rate versus the actual rate of graduation. Social mobility also includes the average net price for full-time, first year students who receive financial aid. The next category is research. The subdivisions of research include the total amount of expenditures and the total number of bachelor recipients who go on to receive PhDs, relative to their schools size. The final category is service. This is based off of the total number of graduates who go into the Peace Corps, and the percentage of students who serve in the ROTC. Service is also constructed from the percentage of funds in federal work-study money that goes to community service. It also includes the number of students participating in community service and number of hours of service performed. This is combined between the staff supporting community