Anger dysfunction and its treatment among offenders

Sammut Henwood, Kevin (2016) Anger dysfunction and its treatment among offenders. DForenPsy thesis, University of Nottingham.

[img] PDF (Thesis - as examined) - Repository staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB)


This thesis sought to explore the effectiveness of CBT based anger management interventions with offenders. This was achieved in part through a random control trial on a sample of 24 community based male offenders, screened for dysfunctional anger. Statistical analysis revealed significant post-intervention reductions for both Groups in the reported anger symptoms and a substantial overall treatment effect noted (r = .89).

The intervention used in the RCT was adapted to provide treatment for a female offender (N=1). An in-depth formulation of the case study facilitated the adaptation of the programme for the female offender. The case study was assessed at baseline, after the intervention and after a period of follow-up. The results obtained indicated clinically significant changes which seemed to justify the formal adaption of the programme. A psychometric critique also delved in the suitability of using the Anger Disorder Scales (Di Giuseppe & Tafrate, 2004) as the main measure of anger in the research and case study. Its reliability and validity and its strengths in terms of developing in-depth formulation of offenders’ anger dysfunction were discussed. The research and case study used psychometric measures to assess the efficacy of interventions. Thus, to compensate for the reliance on self-reported measures, the systematic review and meta-analysis explored the effectiveness of CBT based interventions by analysing long-term behavioural changes of interventions as measured through general and violent recidivism. All the included studies (n=14) were submitted to a quality assessment prior to extracting the required information. An overall risk reduction of 23% was estimated for general recidivism (k = 7; n = 1836; RR = .77; 95% CI .61 to .96) and 28% for violent recidivism (k = 7; n = 1888; RR = .72; 95% CI .55 to .93) following treatment. Furthermore the risk reduction for general recidivism increased to 42% (k = 6; n = 703; RR = .58; 95% CI .39 to .87) and increased to 56% for violent recidivism (k = 6; n = 1029; RR = .44; 95% CI .27 to .71) for those offenders completing treatment compared to treatment drop-outs. The magnitude of effect in the included studies also compared lower intensity programmes such as anger management with more intensive violence prevention programmes. Conclusions of this meta-analysis were discussed in terms of the economic viability of interventions and magnitude of treatment effects.

Item Type: Thesis (University of Nottingham only) (DForenPsy)
Supervisors: Browne, K.
Chou, S.
Keywords: Anger management, Offenders, Cognitive behavioural therapy based interventions
Subjects: W Medicine and related subjects (NLM Classification) > WM Psychiatry
Faculties/Schools: UK Campuses > Faculty of Medicine and Health Sciences > School of Medicine
Item ID: 30999
Depositing User: Sammut Henwood, Kevin
Date Deposited: 19 Jul 2016 06:40
Last Modified: 19 Oct 2017 07:40

Actions (Archive Staff Only)

Edit View Edit View