The danger of unrealistic optimism: Linking caregivers‟ perceived ability to help victims of terror with their own secondary traumatic stress Shaul Shalvi¹*, Geva Shenkman², Michel J. J. Handgraaf¹, and Carsten K.W. De Dreu¹ ¹ University of Amsterdam, ² Tel Aviv University Forthcoming in Journal of Applied Social Psychology Author Note Shaul Shalvi, Michel J. J. Handgraaf, and Carsten K.W De Dreu, Department of Psychology, University of Amsterdam, The Netherlands. Geva Shenkman, Department of Psychology, Tel Aviv University, Israel, and the Psychiatric Division, Chaim Sheba Medical Center, Tel-Hashomer, Israel. *Address correspondence to Shaul Shalvi, Department of Psychology, University of Amsterdam, Roetersstraat 15, 1018 WB Amsterdam, The Netherlands, or by email to s.shalvi@uva.nl. Phone: +31 20 5257294; Fax: +31 20 6390531.