“2-yr mean citedness” is the OpenAlex field summary_stats.2yr_mean_citedness (CC0): mean citations per paper over a two-year window. It is a raw bibliometric field, not a journal rating, and is not used for default ranking.
Subject classification
Social Sciences62Arts and Humanities28Agricultural and Biological Sciences18General Works: History of scholarship and learning. The humanities1Social Sciences: Social sciences (General)1