“…Researchers have taken a variety of approaches to explore and understand terrorism, extremism and radicalisation, and literature has emerged from a range of disciplines; these include economics, political science, psychology and sociology (Borum, 2011). There is no unique “terrorist personality” (Kruglanski and Fishman, 2006; McCauley, 2002; Horgan, 2003; Victoroff, 2005); characteristics underlying terrorism vary for different individuals (Horgan, 2008; Obaidi et al , 2022; Reidy, 2019), and can include both behavioural and motivational factors, such as the choice to use violence or refrain from violence to achieve extremist goals; the existence or absence of religious beliefs; and an ideology that drives their behaviour. A sense of belonging and identity can be a protective factor against extremist influences and can have positive effects on psychological well-being, but may also facilitate polarisation of views, dehumanisation of and criminal and extremist-related violence towards outgroup members (Boduszek et al , 2021; Moskalenko, 2021).…”