Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 40
Filter
Add more filters

Publication year range
1.
J Pers Assess ; 104(6): 711-722, 2022.
Article in English | MEDLINE | ID: mdl-34739345

ABSTRACT

The Comprehensive Assessment of Psychopathic Personality Symptom Rating Scale (CAPP SRS) is a relatively new measure of psychopathic personality disorder (PPD) based on the CAPP concept map of psychopathy. To investigate the CAPP SRS, we identified the most plausible formal test structure for the test using the framework proposed by Slaney and Maraun, identified an appropriate quantitative characterization of that test structure, and then statistically evaluated it based on analysis of CAPP SRS data collected from a multisite sample of 314 adult male correctional offenders and secure hospital patients in Scotland and England. Overall, the CAPP SRS survived falsification when observed test data were compared to expectations based on the unidimensional monotone latent variable or UMLV model of Holland and Rosenbaum. CAPP SRS composite scores calculated consistent with the UMLV model had good measurement precision and good external validity with respect to scores on an established test of PPD. The findings provide provisional support for the test validity of the CAPP SRS and highlight the importance of theory-driven evaluations of test validity.


Subject(s)
Criminals , Personality Assessment , Adult , Humans , Male , Antisocial Personality Disorder/diagnosis , Psychometrics/methods , Inpatients
2.
Violence Vict ; 36(2): 195-213, 2021 04 01.
Article in English | MEDLINE | ID: mdl-33361449

ABSTRACT

Mental health professionals are at heightened risk of stalking victimization, however minimal research has examined empirically supported risk factors for stalking and the efficacy of risk management strategies. Three hundred and six counselors were surveyed, and the present study focuses on the 7% (n = 23) who had been stalked by clients. Results describe the characteristics of stalking, perpetrators, and victims and the perceived efficacy of management strategies employed. Stalking behaviors tended to be of lower severity. Common perpetrator risk factors included relationship problems, anger, and obsession. Victim vulnerabilities were identified, where many victims engaged in behavior considered ineffective in response to stalking. Victims often encountered problems coping with victimization due to inadequate access to resources. Results indicate that risk management plans must be individualized and highlight ways that mental health professionals can and would like to be protected from stalking.


Subject(s)
Counselors , Crime Victims , Stalking , Adaptation, Psychological , Crime Victims/psychology , Humans , Risk Factors , Stalking/psychology , Stalking/therapy
3.
Law Hum Behav ; 44(1): 37-50, 2020 02.
Article in English | MEDLINE | ID: mdl-31697098

ABSTRACT

OBJECTIVE: This study empirically evaluated risk judgments made using the Risk for Sexual Violence Protocol (RSVP; Hart et al., 2003), a widely used set of structured professional guidelines for assessing and managing sexual violence risk. HYPOTHESIS: Based on evaluations of other structured professional judgment guidelines, we hypothesized that judgments made using the RSVP would demonstrate good interrater reliability, concurrent validity, and predictive validity. METHOD: Based on file review, research assistants made ratings using the RSVP and two commonly used actuarial tools for sexual violence risk assessment in a sample of 100 adult male sexual offenders who successfully completed a community-based sex offender treatment program. Recidivism information was obtained from official records 10 years after treatment completion. RESULTS: With respect to interrater reliability, judgments of the presence and relevance of individual risk factors ranged from moderate to almost perfect, and those for composite scores reflecting the sum of these ratings were almost perfect. Interrater reliability for integrative summary risk ratings was substantial to almost perfect. Regarding concurrent validity, the findings indicated that judgments made using the RSVP had moderate to large and statistically significant correlations with scores on the actuarial tools. Finally, with respect to predictive validity, RSVP presence total scores and summary risk ratings were predictive of new sexual violence over the follow-up, and the magnitude of their predictive validity effect sizes was similar to that of scores on the actuarial tools. CONCLUSIONS: The findings supported the potential utility of the RSVP in practice. (PsycINFO Database Record (c) 2020 APA, all rights reserved).


Subject(s)
Forensic Psychology , Guidelines as Topic , Risk Assessment/methods , Sex Offenses/prevention & control , Actuarial Analysis , Adult , Aged , Canada/epidemiology , Humans , Judgment , Male , Middle Aged , Predictive Value of Tests , Reproducibility of Results , Sex Offenses/statistics & numerical data , Survival Analysis
4.
J Pers ; 86(4): 577-589, 2018 08.
Article in English | MEDLINE | ID: mdl-28749547

ABSTRACT

OBJECTIVE: The triarchic model of psychopathy (Patrick, Fowles, & Krueger, 2009) posits that psychopathic personality comprises three domains: boldness, meanness, and disinhibition. The present study aimed to clarify conceptual overlap between contemporary definitions of psychopathy, with particular emphasis given to the relevance of boldness (i.e., social dominance, venturesomeness, emotional resiliency)-a topic of recent debate. METHOD: Undergraduate students (N = 439) compared the lexical similarity of triarchic domains with two contemporary models of psychopathy: the Comprehensive Assessment of Psychopathic Personality (CAPP; Cooke, Hart, Logan, & Michie, 2012) and the Five-Factor Model of psychopathy (FFM; Widiger & Lynam, 1998). RESULTS: From a content validity perspective, meanness and disinhibition were lexically similar to both the CAPP and FFM psychopathy, whereas boldness was less strongly associated with these models. Meanness showed the strongest lexical similarity in comparison with past prototypicality ratings of the CAPP and FFM psychopathy. CONCLUSIONS: These findings bear implications for defining and comparing conceptualizations of psychopathy that underpin its assessment.


Subject(s)
Antisocial Personality Disorder/physiopathology , Models, Psychological , Personality Assessment , Resilience, Psychological , Social Dominance , Adolescent , Adult , Female , Humans , Male , Terminology as Topic , Young Adult
5.
Law Hum Behav ; 40(2): 136-46, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26651621

ABSTRACT

The Hare Psychopathy Checklist-Revised (PCL-R; Hare, 2003) is a commonly used psychological test for assessing traits of psychopathic personality disorder. Despite the abundance of research using the PCL-R, the vast majority of research used samples of convenience rather than systematic methods to minimize sampling bias and maximize the generalizability of findings. This potentially complicates the interpretation of test scores and research findings, including the "norms" for offenders from the United States and Canada included in the PCL-R manual. In the current study, we evaluated the psychometric properties of PCL-R scores for all male offenders admitted to a regional reception center of the Correctional Service of Canada during a 1-year period (n = 375). Because offenders were admitted for assessment prior to institutional classification, they comprise a sample that was heterogeneous with respect to correctional risks and needs yet representative of all offenders in that region of the service. We examined the distribution of PCL-R scores, classical test theory indices of its structural reliability, the factor structure of test items, and the external correlates of test scores. The findings were highly consistent with those typically reported in previous studies. We interpret these results as indicating it is unlikely any sampling limitations of past research using the PCL-R resulted in findings that were, overall, strongly biased or unrepresentative.


Subject(s)
Antisocial Personality Disorder/psychology , Prisoners/psychology , Psychiatric Status Rating Scales , Adolescent , Adult , Aged , Canada , Checklist , Humans , Male , Middle Aged , Psychometrics , Young Adult
6.
Behav Sci Law ; 33(1): 39-55, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25615811

ABSTRACT

The increased use of violence risk assessment tools in professional practice has sparked the development of best-practice guidelines for communicating about violence risk. The present study examined 166 pre-sentence reports, authored by clinicians and probation officers, to determine the extent to which they are consistent with those guidelines. We examined the frequency with which reports contained information about five topics: the presence of risk factors; the relevance of risk factors; scenarios of future violence; recommended management strategies; and summary risk judgments. Analyses revealed that the topics addressed most frequently in reports were the presence of risk factors and recommended management strategies, but none of the five topics was addressed consistently, completely, or clearly in reports. This was especially the case for probation reports. The findings highlight the need to improve practice through better implementation of guidelines for risk communication. Also needed is research on the extent to which information in risk communications is comprehended, accepted, and used by various stakeholder groups.


Subject(s)
Communication , Risk Assessment , Violence , British Columbia , Crime/legislation & jurisprudence , Crime/psychology , Forensic Psychiatry/legislation & jurisprudence , Forensic Psychiatry/methods , Forensic Psychiatry/statistics & numerical data , Humans , Judgment , Risk Assessment/legislation & jurisprudence , Risk Assessment/methods , Risk Factors , Violence/legislation & jurisprudence , Violence/psychology
7.
Law Hum Behav ; 39(5): 451-62, 2015 Oct.
Article in English | MEDLINE | ID: mdl-26011041

ABSTRACT

Remorse has long been important to the juvenile justice system. However, the nature of this construct has not yet been clearly articulated, and little research has examined its relationships with other theoretically and forensically relevant variables. The present study was intended to address these issues by examining relationships among remorse, psychopathology, and psychopathy in a sample of adolescent offenders (N = 97) using the theoretically and empirically established framework of guilt and shame (Tangney & Dearing, 2002). Findings indicated that shame was positively related to behavioral features of psychopathy, whereas guilt was negatively related to psychopathic characteristics more broadly. In addition, shame was positively associated with numerous mental health problems whereas guilt was negatively associated with anger, depression, and anxiety. These results provide empirical support for theory that psychopathy is characterized by lack of remorse (e.g., Hare, 1991), and also underscore shame and guilt as potentially important treatment targets for adolescent offenders.


Subject(s)
Guilt , Juvenile Delinquency/psychology , Shame , Adolescent , Antisocial Personality Disorder/psychology , British Columbia , Child , Female , Humans , Male
8.
Behav Sci Law ; 31(1): 81-102, 2013.
Article in English | MEDLINE | ID: mdl-23322617

ABSTRACT

We investigated the precision of individual risk estimates made using actuarial risk assessment instruments (ARAIs) by discussing some major conceptual issues and then illustrating them by analyzing new data. We used a standard multivariate statistical procedure, logistic regression, to create a new ARAI based on data from a follow-up study of 90 adult male sex offenders. We indexed predictive precision at the group level using confidence intervals for group mean probability estimates, and at the individual level using prediction intervals for individual probability estimates. Consistent with past research, ARAI scores were moderately and significantly predictive of failure in the aggregate, but group probability estimates had substantial margins of error and individual probability estimates had very large margins of error. We conclude that, without major advances in our understanding of the causes of violence, ARAIs cannot be used to estimate the specific probability or absolute likelihood of future violence with any reasonable degree of precision or certainty. The implications for conducting violence risk assessments in forensic mental health are discussed.


Subject(s)
Actuarial Analysis , Violence/prevention & control , Canada , Confidence Intervals , Humans , Logistic Models , Male , Risk Assessment/methods , Risk Assessment/standards , Sex Offenses
9.
Law Hum Behav ; 37(6): 377-88, 2013 Dec.
Article in English | MEDLINE | ID: mdl-23815092

ABSTRACT

There is general consensus that dynamic factors ought to be considered in the assessment of violence risk, but little direct evidence exists to demonstrate that within-individual fluctuations in putative dynamic factors are associated with changes in risk. We examined these issues in a sample of 30 male forensic psychiatric inpatients using a pseudoprospective design. Static and dynamic factors were coded on the basis of chart review using 2 structured measures of violence risk: Version 2 of the Historical-Clinical-Risk Management-20 (HCR-20; C. D. Webster, K. S. Douglas, D. Eaves, & S. D. Hart, 1997, HCR-20: Assessing risk for violence, Version 2, Vancouver, BC, Canada: Mental Health, Law, and Policy Institute, Simon Fraser University) and the Short-Term Assessment of Risk and Treatability (START; C. D. Webster, M. L. Martin, J. Brink, T. L. Nicholls, & S. L. Desmarais, 2009, Short-Term Assessment of Risk and Treatability [START], Version 1.1, Coquitlam, BC, Canada: British Columbia Mental Health and Addiction Services). HCR-20 and START assessments were repeated every 3 months for a period of 1 year. Institutional violence in the 3 months following each assessment was coded using a modified version of the Overt Aggression Scale (S. C. Yudofsky, J. M. Silver, W. Jackson, J. Endicott, & D. W. Williams, 1986, The Overt Aggression Scale for the objective rating of verbal and physical aggression, The American Journal of Psychiatry, Vol. 143, pp. 35-39). Dynamic risk and strength factors showed predictive validity for institutional aggression. Results of event history analyses demonstrated that changes in dynamic risk factors significantly predicted institutional violence, even after controlling for static risk factors. This is one of the first studies to provide clear and direct support for the utility of dynamic factors in the assessment of violence risk.


Subject(s)
Criminals/psychology , Forensic Psychiatry , Inpatients/psychology , Risk Assessment/methods , Violence , Adult , Aggression , Humans , Male , Middle Aged , Risk Factors
10.
Int J Law Psychiatry ; 89: 101908, 2023.
Article in English | MEDLINE | ID: mdl-37467545

ABSTRACT

In recent years, political events have reignited contentious debates about psychiatry and democratic governance. This discourse has largely centred around the ethics and morality of public commentary, particularly in relation to the American Psychiatric Association's Goldwater Rule. Yet, few studies have examined the practical implications of health-related limitations due to mental illness in national leadership and the constitutional and legal provisions that surround these issues, including voluntary or involuntary proceedings. Accordingly, this theoretical paper analyses these topics in a German context using the position at the head of the executive: the chancellorship. Germany was selected as a case example as the biggest democracy in Europe with modern legal frameworks representative of the post-World War Two era in European constitutionalism, and for its economic and political influence within the European Union. Throughout this paper, we do not speculate on the mental health of any individual (past or present), but instead explore jurisdictional mechanisms around health-related limitations in German high office. Consequently, we outline relevant constitutional and legal scenarios, and how short- or long-term medical incapacity may determine requisite responses and contingent complexities. This underpins our discussion, where we consider legal ambiguities, functional capacity, and ethical concerns in psychiatric practice.


Subject(s)
Mental Disorders , Mental Health , Humans , Leadership , Germany , Europe
11.
Assessment ; 30(4): 1168-1181, 2023 06.
Article in English | MEDLINE | ID: mdl-35435005

ABSTRACT

We examined the long-term risk for stalking recidivism and the predictive validity of ratings made using the Guidelines for Stalking Assessment and Management (SAM) in 100 stalking offenders from a forensic clinic. Overall, 45 offenders were convicted of, charged with, or the subject of police investigation for stalking-related offenses during a potential time at risk that averaged 13.47 years. Survival analyses using the Cox proportional hazards model indicated that a composite score of the presence of SAM risk factors was significantly predictive of recidivism and had significant incremental validity relative to total scores on two scales commonly used in violence risk assessment, the Screening Version of the Hare Psychopathy Checklist-Revised (PCL:SV) and the Violence Risk Appraisal Guide (VRAG). Overall ratings of risk made using the SAM, however, were not significantly predictive of recidivism. We discuss the potential uses of the SAM in stalking risk assessment and provide recommendations for future research.


Subject(s)
Criminals , Recidivism , Stalking , Humans , Recidivism/prevention & control , Risk Factors , Risk Assessment
12.
Personal Disord ; 14(4): 391-400, 2023 07.
Article in English | MEDLINE | ID: mdl-35467915

ABSTRACT

Cost of illness research has established that mental disorders lead to significant social burden and massive financial costs. A significant gap exists for the economic burden of many personality disorders, including psychopathic personality disorder (PPD). In the current study, we used a top-down prevalence-based cost of illness approach to estimate bounded crime cost estimates of PPD in the United States and Canada. Three key model parameters (PPD prevalence, relative offending rate of individuals with PPD, and national costs of crime for each country) were informed by existing literature. Sensitivity analyses and Monte Carlo simulations were conducted to provide bounded and central tendency estimates of crime costs, respectively. The estimated PPD-related costs of crime ranged from $245.50 billion to $1,591.57 billion (simulated means = $512.83 to $964.23 billion) in the United States and $12.14 billion to $53.00 billion (simulated means = $25.33 to $32.10 billion) in Canada. These results suggest that PPD may be associated with a substantial economic burden as a result of crime in North America. Recommendations are discussed regarding the burden-treatment discrepancy for PPD, as the development of future effective treatment for the disorder may decrease its costly burden on health and justice systems. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Subject(s)
Antisocial Personality Disorder , Costs and Cost Analysis , Crime , Criminals , Antisocial Personality Disorder/epidemiology , Antisocial Personality Disorder/psychology , Crime/economics , Crime/psychology , Crime/statistics & numerical data , Criminals/psychology , Criminals/statistics & numerical data , Prevalence , Costs and Cost Analysis/statistics & numerical data , Cost of Illness , Humans , Monte Carlo Method , Canada/epidemiology , United States/epidemiology
13.
Personal Disord ; 14(4): 405-407, 2023 07.
Article in English | MEDLINE | ID: mdl-37358533

ABSTRACT

In our article, "How much does that cost? Examining the economic costs of crime in North America attributable to people with psychopathic personality disorder" (Gatner et al., 2023, pp. 391-400), we estimated that psychopathic personality disorder (PPD) was associated with substantial crime costs, using a top-down approach of national costs in the United States and Canada. Verona and Joyner (2023) raised several concerns about our findings. Although we think some of their points help to map directions for future research, we disagree with others they raised related to the conceptualization of PPD, the problem of undetected crimes, and their concerns with putative national comparisons. We strongly welcome debate about the societal impacts of PPD in the hope that it spurs increased attention and innovation regarding the treatment and management of PPD. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Subject(s)
Antisocial Personality Disorder , Crime , Humans , Attention , Canada
14.
Law Hum Behav ; 36(1): 60-7, 2012 Feb.
Article in English | MEDLINE | ID: mdl-22471386

ABSTRACT

Intimate partner violence (IPV) is a crime that is present in all countries, seriously impacts victims, and demands a great deal of time and resources from the criminal justice system. The current study examined the use of the Spousal Assault Risk Assessment Guide, 2nd ed. (SARA; Kropp, Hart, Webster, & Eaves, 1995), a structured professional judgment risk assessment and management tool for IPV, by police officers in Sweden over a follow-up of 18 months. SARA risk assessments had significant predictive validity with respect to risk management recommendations made by police, as well as with recidivism as indexed by subsequent contacts with police. Risk management mediated the association between risk assessment and recidivism: High levels of intervention were associated with decreased recidivism in high risk cases, but with increased recidivism in low risk cases. The findings support the potential utility of police-based risk assessment and management of IPV, and in particular the belief that appropriately structured risk assessment and management decisions can prevent violence.


Subject(s)
Domestic Violence , Police , Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Risk Assessment/methods , Sweden , Young Adult
15.
Sex Abuse ; 24(3): 289-302, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22344781

ABSTRACT

The Static-99 is the most commonly used risk assessment instrument for sexual violence in North America and its results can affect highly consequential decisions made in the criminal and civil justice systems. Despite its influence, few studies have systematically examined how the Static-99 is used by clinicians in practice. The current study compares the Static-99 ratings of clinicians to those of researchers for 100 adult males who completed an outpatient sex offender treatment program and were followed up over an average of about 4 years. Results showed good agreement between the ratings of clinicians and researchers for total scores on the Static-99, as well as for most individual items. Ratings by clinicians tended to be slightly lower than those made by researchers. The predictive validity of ratings made by clinicians and researchers was very similar and moderate in terms of effect size. In 30 cases, clinicians used discretion to "override" or adjust the Static-99 ratings when making final risk judgments, but the predictive validity of the clinical adjusted ratings was worse than that of the original Static-99 ratings made by clinicians. The need for quality assurance and training are discussed along with the need for clear empirically supported guidelines regarding overrides.


Subject(s)
Criminals/psychology , Forensic Psychiatry/methods , Sex Offenses/psychology , Adult , Aged , Humans , Male , Middle Aged , Predictive Value of Tests , Psychometrics/instrumentation , Reproducibility of Results , Risk Assessment/methods
16.
Personal Disord ; 13(1): 63, 2022 01.
Article in English | MEDLINE | ID: mdl-34166037

ABSTRACT

Reports an error in "Examining the incremental and interactive effects of boldness with meanness and disinhibition within the triarchic model of psychopathy" by Dylan T. Gatner, Kevin S. Douglas and Stephen D. Hart (Personality Disorders: Theory, Research, and Treatment, 2016[Jul], Vol 7[3], 259-268). In the original article, there were several errors in the reporting of data from the Social Emotional Questionnaire. In the "Outcome Measures" section of the Method, under the "Social and emotional functioning" heading, the Sociability subscale was incorrectly identified as the Social Conformity scale. The sentence referencing the data should have read, "However, the Antisocial Behavior (α = .39, MIC = .14) and Sociability (α = -.09, MIC = .02) subscales had poor internal consistency; the Sociability subscale was removed from our analyses." In the last paragraph of the "Research Question 2: Incremental Value of Boldness" section in the Results, the data for the Sociability scale have been replaced with the data for the Social Conformity scale. Additionally, the data reported for the Sociability scale in Tables 2 and 3 have been replaced with the data reported for the Social Conformity scale. (The following abstract of the original article appeared in record 2016-13473-001). The triarchic model of psychopathy (Patrick, Fowles, & Krueger, 2009) comprises 3 phenotypic domains: Meanness, Disinhibition, and Boldness. Ongoing controversy surrounds the relevance of Boldness in the conceptualization and assessment of psychopathy. In the current study, undergraduate students (N = 439) completed the Triarchic Psychopathy Measure (Patrick, 2010) to examine the association between Boldness and a host of theoretically relevant external criteria. Boldness was generally unrelated to either prosocial or harmful criteria. Boldness rarely provided incremental value above or interacted with Meanness and Disinhibition with respect to external criteria. Curvilinear effects of Boldness rarely emerged. The findings suggest that Boldness might not be a central construct in the definition of psychopathic personality disorder. Implications for the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (American Psychiatric Association, 2013) psychopathic specifier are discussed. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

17.
Behav Sci Law ; 29(2): 302-16, 2011.
Article in English | MEDLINE | ID: mdl-21374706

ABSTRACT

International research has established that stalking is a prevalent problem with serious and often life-threatening consequences for victims. Stalking is also a unique form of violence due to its nature and diversity, making it difficult for criminal justice and health professionals to establish which perpetrators and victims have the greatest need for services and protection. Risk assessment is one way to address these problems but few tools exist. This article describes the development of the Guidelines for Stalking Assessment and Management (SAM), the first risk assessment instrument designed specifically for the stalking situation. Preliminary data are presented, indicating that the SAM has promise for use by professionals working with stalkers and their victims. Results indicated that interrater reliabilities for the SAM risk factors and total scores range from fair to good, and the structural reliability of the SAM is sound. Moreover, the SAM showed good concurrent validity when compared with two other measures of violence propensity: the Psychopathy Checklist Screening Version (PCL:SV) and the Violence Risk Appraisal Guide (VRAG). Limitations of the study are discussed, especially those related to the difficulties inherent in file-based research, and suggestions for future research are offered.


Subject(s)
Stalking/diagnosis , Violence , Adult , Humans , Practice Guidelines as Topic , Reproducibility of Results , Risk Assessment , Risk Factors , Stalking/therapy , Surveys and Questionnaires
18.
Int J Offender Ther Comp Criminol ; 65(13-14): 1423-1445, 2021 Oct.
Article in English | MEDLINE | ID: mdl-33164610

ABSTRACT

The Risk for Sexual Violence Protocol (RSVP) is a set of structured professional judgment guidelines for conducting management-oriented sexual violence risk assessments. We investigated the interrater reliability (IRR) and the concurrent validity of the RSVP in the Republic of Korea. A total of 32 experienced and specially trained correctional psychologists in teams of four used an authorized translation of the RSVP to independently assess 47 adult male sexual offenders through a case history review and interviews. IRR, as indexed using intraclass correlations coefficients, was typically good to excellent for rating the presence and relevance of risk factors. Concurrent validity was also good, as indexed by correlations between RSVP ratings and total scores on two instruments for assessing risk for sexual violence: the Hallym Assessment Guide for Sex Offender Risk and Static-99R. Implications for the use of the RSVP by professionals and agencies, both within and outside Korea, are discussed.


Subject(s)
Criminals , Sex Offenses , Adult , Humans , Male , Reproducibility of Results , Republic of Korea , Risk Assessment
19.
Psychol Bull ; 135(5): 679-706, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19702378

ABSTRACT

The potential association between psychosis and violence to others has long been debated. Past research findings are mixed and appear to depend on numerous potential moderators. As such, the authors conducted a quantitative review (meta-analysis) of research on the association between psychosis and violence. A total of 885 effect sizes (odds ratios) were calculated or estimated from 204 studies on the basis of 166 independent data sets. The central tendency (median) of the effect sizes indicated that psychosis was significantly associated with a 49%-68% increase in the odds of violence. However, there was substantial dispersion among effect sizes. Moderation analyses indicated that the dispersion was attributable in part to methodological factors, such as study design (e.g., community vs. institutional samples), definition and measurement of psychosis (e.g., diagnostic vs. symptom-level measurement, type of symptom), and comparison group (e.g., psychosis compared with externalizing vs. internalizing vs. no mental disorder). The authors discuss these findings in light of potential causal models of the association between psychosis and violence, the role of psychosis in violence risk assessment and management, and recommendations for future research.


Subject(s)
Psychotic Disorders/epidemiology , Psychotic Disorders/psychology , Violence/psychology , Violence/statistics & numerical data , Causality , Hospitals, Psychiatric/statistics & numerical data , Humans , Institutionalization/statistics & numerical data , Internal-External Control , Mental Disorders/epidemiology , Mental Disorders/psychology , Odds Ratio , Psychotic Disorders/diagnosis , Research Design/trends , Risk Factors , Violence/trends
20.
J Clin Child Adolesc Psychol ; 38(5): 595-605, 2009 Sep.
Article in English | MEDLINE | ID: mdl-20183645

ABSTRACT

There is considerable debate about the assessment of psychopathic traits in adolescence due in part to questions regarding the stability of traits. We investigated the 6-month stability of psychopathic traits in a sample of 83 male adolescent offenders using an augmented protocol for the Psychopathy Checklist: Youth Version and the self-report Antisocial Process Screening Device. Findings suggested moderate to high stability of psychopathic traits, as indexed by total scores, and low to moderate stability of psychopathic traits at the factor level. The interpersonal and behavioral traits demonstrated greater stability relative to the affective traits, and stability varied by developmental stage, with lower stability in early adolescence. Implications for understanding the developmental expression of psychopathic traits in adolescence, as well as for clinical-forensic practice, are discussed.


Subject(s)
Adolescent Behavior/psychology , Antisocial Personality Disorder/diagnosis , Antisocial Personality Disorder/psychology , Criminals/psychology , Juvenile Delinquency/psychology , Adolescent , Humans , Male , Personality Inventory/statistics & numerical data , Severity of Illness Index , Surveys and Questionnaires , Time Factors
SELECTION OF CITATIONS
SEARCH DETAIL