Original survey data from a Chilean sample (N = 1267) are used to study the socio-demographic and psychosocial determinants of belief in forgiveness attitudes in the context of measuring the impact of truth and reconciliation reports (NTRC, 1991) and Political Imprisonment and Torture (NPIC, 2004) commissions. A linear multiple regression analysis (R 2 = .15; F(8, 1269) = 14.65; p < .001; effect size f 2 = .18) revealed the positive effect of perceived apology sincerity (β = 0.22; p < .001), emotions of anger (β = –0.08; p < .05), and positive social climate (β = 0.08; p < .05). People who believe in the victims’ forgiveness feel less anger, have more positive perceptions of the sincerity and efficacy of the apologies, agree to a greater extent that the commission helped to find out the truth about what happened to the victims, and have a greater perception of the social climate as positive. The results show the importance of psychosocial and institutional variables in beliefs about forgiveness, and they suggest differences between interpersonal and intergroup forgiveness processes.
