Journal impact factors: what are they, how to find them

The impact factor is a measure reflecting the average number of citations to recent articles published in a journal. It is frequently used as a proxy for the relative importance of a journal within its field, with journals with higher impact factors deemed to be more important than those with lower ones. Use the Journal Citation Reports database, available on the Kornhauser Health Sciences Library homepage and on Databases: A to Z, to determine the impact factor for a journal.