Citation

Allely CS, Wicks SJ. J. Threat Assess. Manag. 2022; 9(4): 218-259.

Copyright

(Copyright © 2022, American Psychological Association)

DOI

10.1037/tam0000179

PMID

unavailable

Abstract

The ability to accurately predict the risk of an individual committing an act of targeted violence is likely to be impossible given the low base rate of these acts (Goodwill & Meloy, 2019). Nevertheless, prevention is possible if there is a focus on fact-based behaviors, and threat management is in place. The Terrorist Radicalization Assessment Protocol (TRAP-18; Meloy, Habermeyer & Guldimann, 2015; Meloy, Roshdi, et al., 2015; Meloy & Gill, 2016; Meloy, 2017) is a collection of 18 behavior-based warning signs for terror incidents. There are eight proximal characteristics and 10 distal characteristics. The aim of this review was to identify studies which have utilized the TRAP-18 either prospectively (operational use) or retroactively or studies which have investigated the validity and reliability of the TRAP-18. A total of 17 relevant articles were identified in the review including six case studies and 11 empirical articles. (PsycInfo Database Record (c) 2022 APA, all rights reserved)

Language: en