In our March issue of IN/Focus, we discussed the Journal Impact Factor as a way to identify the relative value of journals, including open access titles. There are other metrics for measuring the impact of a journal.
The Eigenfactor Score is one such metric that has been in use for the last decade and is now included in Journal Citation Reports (InCites(TM), Thomson-Reuters). The Eigenfactor attempts to measure the importance of a journal to the scientific community based on the total number of citations a journal receives over a five-year time period. Journals that include a greater number of articles, with multidisciplinary coverage, tend to have a larger number of total citations and a higher Eigenfactor score. This has lead to criticism that the Eigenfactor does little more than raw citation counts. Others, however, tout the Eigenfactor as a more realistic measure of a journal’s relative importance within the scientific community. Having the impact factor and Eigenfactor in one source, provides a closer snapshot of journals or a discipline’s journals.
Want to see how your favorite journals rank? Search in Journal Citation Reports for the most recent metrics.