“…Previous research has used different terms to describe residents displaying aggressive behaviours such as "exhibitors" [11,15], "perpetrators" [1,16], "initiators" [2,17], and "aggressors" [10]. Furthermore, prior research has used a variety of terminologies including resident-to-resident abuse [2,[18][19][20], resident-toresident (elder) mistreatment [9,16,[21][22][23][24][25][26], resident-toresident relational aggression [27], resident-to-resident violence [10,17,28], and resident-to-resident (physical) aggression [8,12,13,15,[29][30][31][32]. In 2015, a consensusbuilding workshop with an expert panel of researchers and practitioners reached an agreement on the term resident-to-resident aggression (RRA) defined as: "negative, aggressive and intrusive verbal, physical, sexual, and material interactions between long-term care residents that in a community setting would likely be unwelcome and potentially cause physical or psychological distress or harm to the recipient" [1].…”