According to McArthur (2016; see article within this folder):

"Assessment for social justice is a two-pronged concept.  It refers both to the justice of assessment within higher education, and to the role of assessment in nurturing the forms of learning that will promote greater social justice within society as a whole."

This collection includes definitions, models, a list of case studies, a list of suggested instruments, and more. Assessment for Social Justice is a relatively new area of professional practice which coalesced into a movement in North America in 2018.  It has a rich scholarly & theoretical history, however, dating back to at least 1977.