“…The surveys for Studies 1 to 6 included measures of group-based relative deprivation (e.g., "Muslims will always be at the bottom and non-Muslim Westerners at the top of the social ladder"; αs = .79-.92; Smith et al, 2012), Muslim identification (e.g., "I strongly identify with other Muslims"; αs = .72-.94; adapted from Doosje, Ellemers, & Spears, 1995), perceived injustice (e.g., "Muslims in Muslim countries suffer because of the foreign policy of Western countries"; αs = .60-.89; Obaidi, Bergh, et al, 2018;Tausch et al, 2011), groupbased anger (e.g., "I feel angry when I think of Western countries' foreign policies towards Muslim countries"; αs = .59-.94; adapted from Tausch et al, 2011), 1 violent behavioral intentions ("I am ready to do everything in my power to change Western countries' foreign policy towards Muslim countries" and "I am ready to use violence against other people in order to achieve something I consider very important"; αs = .61-.89) to defend or support Muslims or Islam (Doosje et al, 2013), and finally, place of birth (for detailed information about item content, see Table S4 in the Supplemental Material). All of the examined variables in this research also differentiated former jihadists from the general population in Afghanistan ( Jihadists scoring higher), attesting to their validity (Obaidi, Bergh, Akrami, & Dovidio, 2019). Except for place of birth, all items were scored on 7-point Likert-type scales ranging from 1 (strongly disagree) to 7 (strongly agree).…”