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Examination of the use of self-report psychometrics within sexual offender treatment and in prediction of reoffending

Wakeling, Helen Catherine (2015)
Ph.D. thesis, University of Birmingham.

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This thesis aims to examine the utility of self-report psychometrics within delivery of sexual offender treatment. The focus is particularly on the ability of self-report psychometrics to discriminate between recidivists and non-recidivists and to predict recidivism outcome. Its findings are especially relevant to the National Offender Management Service (NOMS) who deliver sexual offender treatment across custodial and community settings in England and Wales.
Chapter 1 provides an overview of the literature on self-report psychometrics and their use within sexual offender treatment and risk assessment. Chapter 2 provides exploratory analyses into the relationship between a large battery of pre and post self-report psychometrics and recidivism outcome on a large sample of sexual offenders. Chapter 3 examines the predictive power of a selection of psychometric variables and static variables using prognostic modelling techniques. Chapter 4 examines treatment change as measured psychometrically using clinically significant change methodology and its relationship to recidivism outcome. Chapter 5 provides a summary of the previous chapters’ findings and recommends further analyses and investigation. Chapter 6 attempts to generate a new shortened psychometric battery with good validity. Chapter 7 concludes the thesis with an overview, synthesis and discussion of the findings, limitations, practical implications and future research directions. The thesis found psychometrics to have limited discriminant and predictive validity, and in general static factors were better predictors of recidivism than psychometrics.

Type of Work:Ph.D. thesis.
Supervisor(s):Beech, Anthony R. and Freemantle, Nick
School/Faculty:Colleges (2008 onwards) > College of Life & Environmental Sciences
Department:School of Psychology
Subjects:BF Psychology
HN Social history and conditions. Social problems. Social reform
Institution:University of Birmingham
ID Code:5599
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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