Design, development and validity testing of the Gang Affiliation Risk Measure (GARM)

Raby, C., Jones, F. W., Hulbert, S. and Stout, J. (2017) Design, development and validity testing of the Gang Affiliation Risk Measure (GARM). Journal of Forensic Psychiatry and Psychology. ISSN 1478-9949.

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This study aimed to create a measure of risk for gang affiliation, for use in the UK. A pilot stage invited gang affiliated and non-gang affiliated participants between the ages of 16–25 years to retrospectively self-report on 58 items of risk exposure at the age of 11 years. Based on performance of these items, a 26-item measure was developed and administered to a main study sample (n=185) of gang affiliated and non-gang affiliated participants. Categorical Principal Component Analysis was applied to data, yielding a single-factor solution (historic lack of safety and current perception of threat). A 15-item gang affiliation risk measure (GARM) was subsequently created. The GARM demonstrated good internal consistency, construct validity and discriminative ability. Items from the GARM were then transformed to read prospectively, resulting in a test measure for predictive purposes (T-GARM). The T-GARM requires further validation regarding its predictive utility and generalisability. However, this study has resulted in the first measure of gang affiliation, with promising results.

Item Type: Article
Subjects: R Medicine > RC Internal medicine > RC0435 Psychiatry > RC0467 Clinical psychology
Divisions: Faculty of Social and Applied Sciences > School of Psychology, Politics and Sociology > Salomons Centre for Applied Psychology
Depositing User: Dr Fergal W. Jones
Date Deposited: 15 May 2017 15:20
Last Modified: 12 Dec 2017 05:16

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Last edited: 29/06/2016 12:23:00