“…This task was informed by an emerging literature on social identity complexity that has concerned itself with the relationships between MGMs, and the degree to which these may be (dys)functional (e.g., Benet?Martínez, & Haritatos, ; Ramarajan, ). Researchers have also argued for the importance of identity congruence (Hoang, Holloway, & Mendoza, ) or identity integration (Amiot, de la Sablonnière, Terry, & Smith, ), which we consider conceptually similar to group compatibility (Iyer, Jetten, Tsivrikos, Postmes, & Haslam, ). This procedure provided a basis for the last of the four core SIM constructs – Group Compatibility – which was calculated as the proportion of links between groups that was rated as ‘very easy’ (to be a member of two groups).…”