<p>“Student selectivity (15 percent). A school’s academic atmosphere is determined in part by the abilities and ambitions of the student body. We therefore factor in test scores of enrollees on the SAT or ACT tests (50 percent of the selectivity score); the proportion of enrolled freshmen who graduated in the top 10 percent of their high school classes for all national universities and liberal arts colleges, and the top 25 percent for institutions in the master’s and comprehensive colleges categories (40 percent); and the acceptance rate, or the ratio of students admitted to applicants (10 percent). The data are for the fall 2004 entering class.”</p>