Original sentence: The list has been published since 2000.The measurement used in this report is anchored heavily on relevant objective data such as research publications, citations, recognitions and funding
Edited sentence: Among the statistics provided, the figures for total and federal research expenditures may or may not include grants won by the hospital-based faculty, depending on whether the hospital is legally owned by the school or is financially independent.The approach for this publication appears to be more scientific than those by popular magazines as the researchers all come from scientific backgrounds and the fact that schools are grouped into tiers instead of singular ranking.The list has been published since 2000 and attempts to understand the research aspects of American universities better.The measurement used in this report is anchored heavily on relevant objective data, such as research publications, citations, recognitions and funding - the quintessential measurements for research.This report has been circulated and sought after among academia itself