- Psychopathy, Forensic Psychiatry, Sexual Offending
- Personality Disorders and Psychopathology
- Crime Patterns and Interventions
- Criminal Justice and Corrections Analysis
- Stalking, Cyberstalking, and Harassment
- Personality Traits and Psychology
- Health disparities and outcomes
- Child Abuse and Trauma
- Mental Health and Psychiatry
- Intimate Partner and Family Violence
- Psychotherapy Techniques and Applications
- Deception detection and forensic psychology
- Health, psychology, and well-being
- Suicide and Self-Harm Studies
- Child and Adolescent Psychosocial and Emotional Development
- Cardiac, Anesthesia and Surgical Outcomes
- Homicide, Infanticide, and Child Abuse
- Bullying, Victimization, and Aggression
- Homelessness and Social Issues
- Astrophysics and Cosmic Phenomena
- Healthcare Systems and Technology
- Vector-Borne Animal Diseases
- Mental Health Research Topics
- Substance Abuse Treatment and Outcomes
- Academic and Historical Perspectives in Psychology
Leeds Beckett University
2025
Glasgow Caledonian University
2009-2023
University of Colorado Denver
2023
University of Colorado Cancer Center
2023
O'Neal Comprehensive Cancer Center
2023
Australian Catholic University
2022-2023
Sir Charles Gairdner Hospital
2023
Fiona Stanley Hospital
2023
St John of God Murdoch Hospital
2022
University of Bergen
2010-2021
Psychopathy is characterized by diverse indicators. Clinical accounts have emphasized 3 distinct facets: interpersonal, affective, and behavioral. Research using the Checklist--Revised (PCL-R), however, has a 2-factor model. A review of literature on PCL-R related measures psychopathy, together with confirmatory factor analysis data from North American participants, indicates that model cannot be sustained. 3-factor hierarchical was developed in which coherent superordinate factor,...
The development of the Psychopathy Checklist-Revised (PCL-R; R. D. Hare, 2003) has fueled intense clinical interest in construct psychopathy. Unfortunately, a side effect this been conceptual confusion and, particular, conflating measures with constructs. Indeed, field is danger equating PCL-R theoretical A key point debate whether criminal behavior central component, or mere downstream correlate, In article, authors present directions for resolving debate. First, factor analysis items...
Actuarial risk assessment instruments (ARAIs) estimate the probability that individuals will engage in future violence.To evaluate ;margins of error' at group and individual level for estimates made using ARAIs.An established statistical method was used to construct 95% CI two popular ARAIs.The were large level; level, they so high as render virtually meaningless.The ARAIs cannot be an individual's violence with any reasonable degree certainty should great caution or not all. In theory,...
Cancers originating in the esophagus or esophagogastric junction constitute a major global health problem. Esophageal cancers are histologically classified as squamous cell carcinoma (SCC) adenocarcinoma, which differ their etiology, pathology, tumor location, therapeutics, and prognosis. In contrast to esophageal usually affects lower esophagus, SCC is more likely localize at higher than tracheal bifurcation. Systemic therapy can provide palliation, improved survival, enhanced quality of...
The Psychopathy Checklist-Revised (PCL-R) is an important measure in both applied and research settings. Evidence for its validity mostly derived from male Caucasian participants. PCL-R ratings of 359 356 African American participants were compared using confirmatory factor analysis (CFA) item response theory (lRn analyses. Previous has indicated that 13 items the can be described by a 3-factor hierarchical modeL This model was replicated this sample. No cross-group difference structure...
A survey of clinical views suggests that the significance antisocial and socially deviant behavior in diagnosis psychopathic personality disorder is unclear. To investigate this issue, we evaluated Psychopathy Checklist-Revised ratings (PCL-R; Hare, 1991) using structural equation modeling. One model, referred to as measurement included PCL-R related primary symptoms psychopathy; a second, causal same secondary or consequences. Compared models, model more items, was parsimonious, had equal...
The Screening Version of the Psychopathy Checklist-Revised (PCL:SV; S. D. Hart, N. Cox, & R. Hare, 1995) was developed to complement (PCL-R; 1991), and for use outside forensic settings. PCL:SV takes less time administer requires collateral information than PCL-R. An item response theory approach adopted determine similarities in structural properties 2 instruments whether could be regarded as a short form Eight 12 items were strongly parallel their equivalent PCL-R items. Of 4 which...
A survey of clinical views suggests that the significance antisocial and socially deviant behavior in diagnosis psychopathic personality disorder is unclear. To investigate this issue, we evaluated Psychopathy Checklist-Revised ratings (PCL-R; Hare, 1991) using structural equation modeling. One model, referred to as measurement included PCL-R related primary symptoms psychopathy; a second, causal same secondary or consequences. Compared models, model more items, was parsimonious, had equal...
Differences in the prevalence and presentation of psychopathic personality disorder between North America Scotland were evaluated. R. D. Hare's (1991) Psychopathy Checklist--Revised ratings obtained from a sample 2,067 American male prisoners forensic patients compared with 246 Scottish prisoners. Item response theory methods used to examine differences performance items equate scale across settings. The had equal relevance description both settings; however, have higher levels underlying...
Abstract Despite the growing number of studies on psychopathy in females, core characteristics this personality disorder among females remain uninvestigated. Most have attempted to understand by applying male criteria adult females: they ignored putative gender differences constitution and expression disorder. Several issues require resolution: first, whether practitioners apply same diagnose women, second, instruments used assess are tapping construct across gender, third, types behavioral...
Psychopathic personality disorder (PPD) has important clinical and forensic implications. But much more effort been devoted to assessing or diagnosing PPD than explicating defining it. In the first part of this paper, we describe development a conceptual model “concept map” PPD. Based on systematic review descriptions in research literature, as well consultation with subject matter experts, identified key features translated them into 33 symptoms, presented natural language (i.e.,...
Psychopathy is the key construct in Dangerous and Severe Personality Disorder (DSPD) Programme. The Checklist - Revised used as a primary means of selection for programme. confounds two distinct constructs personality disorder criminal behaviour. This confound important both practically theoretically. For example, under criteria DSPD it necessary to demonstrate that has functional link with future risk been exacerbated recently by claims behaviour core feature psychopathic disorder....
Summary Psychological and somatic symptoms presented by women in middle life are frequently attributed to the menopause. Many writers have questioned this assumption placed more emphasis on environmental personality factors. Using a event model multivariate analysis technique, stress was shown significantly powerful influence elevation of normal population at that age than did Furthermore, occurred some considerable time before event. The finding there no significant increase total suggests...
Knowledge of group tendencies may not assist accurate predictions in the individual case. This has importance for forensic decision making and assessment tools routinely applied evaluations. In this article, we Monte Carlo methods to examine diagnostic agreement with different levels inter-rater given distributional characteristics PCL-R scores. Diagnostic score were substantially less than expected. addition, examined confidence intervals associated violent recidivism. On basis empirical...
Psychopathy in women has been subject to little systematic investigation; no coherent conceptualization of the disorder exists. Previous research is constrained by reliance both on a male psychopathy and assessment instruments developed, primarily validated, with men. This study utilized newly broad, personality‐based, gender‐sensitive lexical model psychopathy, Comprehensive Assessment Psychopathic Personality (CAPP). Prototypical analysis was used explore gender differences construct...
We investigated the precision of individual risk estimates made using actuarial assessment instruments (ARAIs) by discussing some major conceptual issues and then illustrating them analyzing new data. used a standard multivariate statistical procedure, logistic regression, to create ARAI based on data from follow-up study 90 adult male sex offenders. indexed predictive at group level confidence intervals for mean probability estimates, prediction estimates. Consistent with past research,...
We compared the childhood experiences of criminal psychopaths with those nonpsychopaths, to examine whether differences in either type or intensity adverse experience could be identified. One hundred and five prisoners, 50 psychopaths, 55 nonpsychopaths were assessed Psychopathy Checklist-Revised (PCL-R) Childhood Experience Care Abuse (CECA) semistructured interviews. Both assessment measures have been demonstrated reliable valid instruments. File information from both adult child services...
The diagnosis of psychopathy is important for violence risk assessment.To investigate whether the syndromal structure psychopathy, as measured by Psychopathy Checklist-Revised (PCL-R), same in UK and North America, this measure yields scores that are equivalent these two regions.Confirmatory factor analytic item response theory methods were applied to large samples PCL-R ratings.The was invariant across cultures, three distinct factors underpinning superordinate syndrome psychopathy....
The Comprehensive Assessment of Psychopathic Personality (CAPP; Cooke, Hart, Logan, & Michie, 2004) is a new personality-based model and clinical assessment psychopathy. This study was the first to examine content validity English-language CAPP. Content validation crucial part development refinement any instrument. Prototypical analysis used evaluate representativeness CAPP symptoms psychopathy construct in adults. Symptoms were rated by international mental health professionals (N = 132)....