Follow Yasmeen on Twitter @YasmeenSerhan Ranked No. 23, USC and crosstown rival UCLA tied on the 2014 U.S. News and World Report National University Rankings released Monday night, according to the Los Angeles Times. Both schools increased one spot higher from last year, sharing the ranking with Carnegie Mellon, the University of Virginia and Wake Forest University. Last year, both Los Angeles schools shared the No. 24 ranking with the University of Virginia.Rankings are determined using multiple criteria, including acceptance rates, graduation rates, faculty and freshmen retention. However, U.S. News and World Report said their methodology for determining this year’s rankings has changed, putting less emphasis on freshmen academics and adding more emphasis to factors such as graduation rate performance and incoming freshmen SAT and ACT exam scores.Overall, the magazine said these changes have had a minimal effect on the top 50 rankings.