RCR: 0.00The Relative Citation Ratio (RCR) is a new citation-based measure of article influence, developed by the Office for Portfolio Analysis (OPA) at the National Institutes of Health in the USA. It was designed to address some of the shortcomings of more standard citation number and Journal Impact Factor (JIF) measures. It does this by normalizing an article’s citation number to both time since publication and the field in which it was published, as using citation number alone (see “Times cited”) does not account for them.
Some areas of research experience higher average levels of citation than others, leading to a citation count of ‘8’ being regarded as high in some fields, but low in others. Along the same lines, a new paper may represent a significant scientific breakthrough, but it will have a low citation count if published recently. By taking into account time and field, the RCR attempts to produce an improved indication of impact and reception. For more information on these, and other RCR improvements, you are encouraged to click on the RCR and OPA links in this description.
NOTE: Not all publications have an RCR score, and this may be for several reasons. For example, if a paper is less than two years old, or older than 1980, it is unlikely to have an RCR score due to the lack of robust citation information in short periods and before 1980. Other criteria that the OPA have for inclusion or exclusion of papers are based on relative timing of citations for papers and qualifying journals contributing to the score.