The Application of the Repertory Grid in Forensic Practice

Abstract

The purpose of this paper is to demonstrate the utility of the repertory grid method with forensic populations. Three case studies are presented, each using an adapted variation of the repertory grid method with a different forensic clients: an individual maintaining their innocence, an individual convicted of sexual offenses, and an individual convicted of stalking. An analysis of the repertory grid findings is presented for each case study, including a Principal Component Analysis and a Self-Identity Plot. This analysis of subjective meaning and idiosyncratic belief systems proves invaluable ordinarily, but particularly when working with populations who present as suspicious and guarded in research or clinical settings. Relationship and offending-related psychological vulnerabilities are explored, with small psychological changes documented and the use of the repertory grid approach as a clinical tool is highlighted. The findings provide a significant contribution to the field of forensic practice, by demonstrating the utility of the repertory grid method when working with forensic populations. This may, in turn, contribute to researchers’ and practitioners’ consideration of its use within future forensic practice.