A new journal-ranking metric

A new journal-metrics kid is on the block: CiteScore.

It looks easy to use, is free for anyone to access, and has some tweaks that make it different from the Impact Factor (IF) metric: (1) it uses three years to calculate, not two; (2) it includes all types of articles published in the denominator, which means that magazine portions of journals like Science and Nature get counted as potentially citable articles. It seems fair if the citations get accrued to the numerator, the article should be counted in the denominator too. Of course, these articles are not really meant to be cited in the first place, which therefore disadvantages journals with this type of content.

But the main thing is that it is easy to use to compare between journals, and covers more titles. The score seems more or less on the same scale as the IF, so it doesn’t cause any cognitive dissonance for most journals.

For example, I could search a few journal titles, let’s say the journals that I often consider for publishing the type of plant community ecology research I usually do. You can add them quickly to form a table.

citescore_plantecology

Each journal is also classified under a subject category. So you could search for that subject category–sub-categories are also available, it seems–and you can browse through all the titles in that category.

The categorisation seems finer and more intuitive than Thomson-Reuter’s IF, which is clunky.

Also surprising is how high some journals now rank, e.g., Forest Ecology & Management above, and Landscape & Urban Planning below compared against other  conservation journals. Both titles are published by Elsevier which owns CiteScore. But then so is Biological Conservation, which is ranked lower (but still higher than Conservation Biology published by Wiley).

citescore_natureconservation

It would be nice, though, if there is some way to display information on all the categories a journal is listed in, because some journals are cross-listed across categories.

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