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Dive into the research topics where Lynn A. Stewart is active.

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Featured researches published by Lynn A. Stewart.


International Journal of Law and Psychiatry | 2013

Attention deficit hyperactivity disorder in a Canadian prison population.

Amelia M. Usher; Lynn A. Stewart; Geoff Wilton

Previous research has shown that a significant percentage of offenders are affected by adult attention deficit hyperactivity disorder (ADHD) and its related symptoms, however it is unknown the extent to which this disorder affects federal inmates in Canada and the impact ADHD has on key correctional outcomes. Four hundred and ninety-seven male federal offenders were assessed at intake over a fourteen month period using the Adult ADHD Self-Report Scale (ASRS). Approximately 16.5% scored in the highest range, which is consistent with the clinical threshold for diagnosis for the disorder; a further 25.2% reported sub-threshold symptoms in the moderate range. ADHD symptoms were found to be associated with unstable job history, presence of a learning disability, lower educational attainment, substance abuse, higher criminal risk and need levels, and other mental health problems. ADHD symptoms were also found to predict institutional misconduct. Additionally, offenders with high levels of ADHD symptomatology fared more poorly on release to the community. Implications for institutional behavior management and the need for additional resources and adapted interventions are discussed.


Journal of Family Violence | 2014

Effectiveness of Risk-Needs-Responsivity-Based Family Violence Programs with Male Offenders

Lynn A. Stewart; Natalie Gabora; P. Randall Kropp; Zina Lee

The following presents the outcome of an evaluation of family violence prevention programs for male offenders. The moderate and high intensity programs were designed and implemented to conform to the Risk-Needs-Responsivity (RNR) principles. Results showed that program participation significantly reduced attitudes that supported violence against women and improved pro-social skills related to non-abusive relationships; treatment effects were moderate to high. Parole officer feedback generally reported positive changes in behavior and attitude associated with treatment. A post-release follow-up indicated that program completion significantly reduced spousal violence and general violent recidivism. Program participation did not, however, have a significant impact on non-violent crime. Results indicate that domestic violence programs respecting the RNR principles may be effective in reducing partner violence.


Criminal Justice and Behavior | 2016

A Meta-Analytic Review of Correctional Interventions for Women Offenders Gender-Neutral Versus Gender-Informed Approaches

Renée Gobeil; Kelley Blanchette; Lynn A. Stewart

Using meta-analytic approaches, we examined whether interventions for women offenders are effective in reducing recidivism, as well as whether gender-informed and gender-neutral interventions differ in their effectiveness. Across 38 effect sizes reflecting 37 studies and nearly 22,000 women offenders, women who participated in correctional interventions had 22% to 35% greater odds of community success than non-participants. In other words, correctional interventions for women are at least as effective as the published rates for men. Across all 38 effect sizes, gender-informed and gender-neutral interventions were equally effective; however, when analyses were limited to 18 effect sizes associated with studies of higher methodological quality, gender-informed interventions were significantly more likely to be associated with reductions in recidivism. These findings support recent research indicating that women and girls are more likely to respond well to gender-informed approaches if their backgrounds and pathways to offending are associated with gendered issues.


The Canadian Journal of Psychiatry | 2016

National Prevalence of Mental Disorders among Incoming Canadian Male Offenders

Janelle N. Beaudette; Lynn A. Stewart

Objective: A current estimate of prevalence rates of mental disorder among Canadian federal offenders is required to facilitate treatment delivery and service planning. Method: The study determined prevalence rates of major mental disorders among newly admitted male offenders entering the federal correctional system in Canada. Data were collected at each regional reception site on consecutive admissions for a 6-month period (N = 1110). Lifetime and current prevalence rates were estimated using the Structured Clinical Interview for DSM Axis I Disorders (SCID-I) and the SCID Axis II Disorders (SCID-II). Degree of impairment was estimated using the Global Assessment of Functioning (GAF) scale. Results were disaggregated by Aboriginal ancestry. Results: The national prevalence rate for any current mental disorder was 73%. The highest rates were for alcohol and substance use disorders; however, over half of participants met the lifetime criteria for a major mental disorder other than alcohol or substance use disorders or antisocial personality disorder. Thirty-eight percent met the criteria for both a current mental disorder and one of the substance use disorders. Fifty-seven percent of offenders with a current Axis I mental disorder were rated as experiencing minimal to moderate functional impairment based on the GAF, indicating that most participants do not require intensive psychiatric services. Conclusions: These results underscore the challenge posed to Canadian federal corrections in providing the necessary mental health services to assist in the management and rehabilitation of a significant percentage of the offender population with mental health needs.


Criminal Justice Studies | 2014

Correctional outcomes of offenders with mental disorders

Lynn A. Stewart; Geoff Wilton

While there is now a considerable literature on the extent of mental disorder (MD) within correctional settings, there is much less research on the correctional outcomes of offenders with a mental disorder (OMDs). This study contributes to that knowledge base by comparing the profiles and institutional and community outcomes of federally-sentenced Canadian offenders with, and without, a MD and examines the correctional response to their management. Results showed that OMDs had higher risk and need ratings and were more likely to be serving their current sentence for a violent offense. Outcomes for OMDs were poorer as reflected by higher rates of institutional charges and transfers to segregation, and higher rates of recidivism on release. This difference holds for the recidivism analysis, even when variables related to risk are controlled. The results demonstrate the complex needs of OMDs and points to the requirement for correctional agencies to provide specialized interventions that address both their mental health and criminogenic needs. Future research is required to examine whether type of diagnosis, particularly the degree of antisocial orientation, contribute to these poorer outcomes.


Journal of Interpersonal Violence | 2014

Profile and Programming Needs of Federal Offenders With Histories of Intimate Partner Violence

Lynn A. Stewart; Jenelle Power

This study presents data on male perpetrators of domestic violence (DV) in the Correctional Service of Canada (CSC) using two samples: (a) a snapshot of all male offenders in CSC who had been assessed for DV (n = 15,166) and (b) a cumulative sample of male offenders in CSC from 2002-2010 who had been assessed as moderate or high risk for further DV (n = 4,261) DV offenders were compared to a cohort sample of non-DV offenders (n = 4,261). Analyses were disaggregated for Aboriginal and non-Aboriginal offenders. Results indicated that 40% of the federal male population had a suspected history of DV and were therefore screened in for in-depth DV risk assessment. Of these, 45% were assessed as moderate or high risk for future DV. DV offenders had higher risk and criminogenic need ratings, more learning disabilities, more mental health problems, and more extensive criminal histories than those without DV histories. Aboriginal DV offenders had high levels of alcohol dependence, suggesting a need for substance abuse treatment as part of DV programming. Most federal offenders with DV histories would be described as belonging to the Antisocial/Generalized Aggressive typology and, therefore, adhering to the Risk-Need-Responsivity principles of the effective correctional literature, cognitive-behavioral treatment that focuses on teaching skills of self-management, and changing attitudes supporting relationship violence would be recommended.


International Journal of Offender Therapy and Comparative Criminology | 2014

Effectiveness of Correctional Programs With Ethnically Diverse Offenders A Meta-Analytic Study

Amelia M. Usher; Lynn A. Stewart

Numerous studies have examined the effects of cognitive-behavioural therapy (CBT) on criminal recidivism, and several meta-analyses have confirmed the overall effectiveness of this approach. Few studies, however, have examined the efficacy of these programs specifically with adult offenders from diverse ethnic backgrounds. The present research uses meta-analytic techniques to examine the outcomes for Canadian federal offenders participating in correctional programs according to self-identified ethnic group (Caucasian, Aboriginal, Black, and Other). Correctional programs within the Correctional Service of Canada adhere to the Risk, Need, Responsivity principles outlined in the effective correctional literature. Within-group analyses compared offenders from the same ethnic background who participated in correctional programs with a nontreatment comparison group. Odds ratios ranged from 1.36 to 1.76, indicating significant reductions in recidivism for offenders participating in correctional programs, regardless of ethnic status. Furthermore, the difference in effect size magnitude between ethnic groups was nonsignificant suggesting offenders from a wide variety of ethnic backgrounds can benefit from correctional programs rigorously developed and implemented using a CBT framework.


International Journal of Law and Psychiatry | 2016

Offenders with Cognitive Deficits in a Canadian Prison Population: Prevalence, Profile, and Outcomes

Lynn A. Stewart; Geoff Wilton; Jeremy Sapers

Impaired cognitive function has been associated with criminal behavior. In Canada it is unknown the extent to which this disorder affects federal inmates or its impact on key correctional outcomes. In this study, 488 incoming male offenders were assessed on the Cognistat, a neuropsychological screening tool. Twenty-five percent of offenders were found to have some level of cognitive deficit. Lower levels of educational achievement, unstable employment history, learning disability, serious alcohol problems, and symptoms of Attention Deficit Hyperactivity Disorder (ADHD) were significantly associated with the presence of cognitive deficits in this sample. Although there was a significant trend for offenders with cognitive deficits to have more admissions to segregation, level of cognitive deficit was not consistently related to rates of institutional charges or rates of completion of required correctional programs. On release, cognitive deficits were not related to returns to custody or returns to custody with an offence. These results indicate that while offenders with cognitive deficits may require assistance with educational upgrading and employment to improve their reintegration potential, they do not pose a particular management problem in the community after release relative to offenders without cognitive deficits.


CMAJ Open | 2016

Association between traumatic brain injury and incarceration: a population-based cohort study

Kathryn E. McIsaac; Andrea Moser; Rahim Moineddin; Leslie Anne Keown; Geoff Wilton; Lynn A. Stewart; Angela Colantonio; Avery B. Nathens; Flora I. Matheson

BACKGROUND There is recent evidence to suggest that sustaining a traumatic brain injury (TBI) increases risk of criminal justice system involvement, including incarceration. The objective of this study was to explore the association between TBI and risk of incarceration among men and women in Ontario. METHODS We identified a cohort of 1.418 million young adults (aged 18-28 yr) on July 1, 1997, living in Ontario, Canada, from administrative health records; they were followed to Dec. 31, 2011. History of TBI was obtained from emergency and hospital records, and incarceration history was obtained from the Correctional Service of Canada records. We estimated the hazard of incarceration using Cox proportional hazard models, adjusting for relevant sociodemographic characteristics and medical history. RESULTS There were 3531 incarcerations over 18 297 508 person-years of follow-up. The incidence of incarceration was higher among participants with prior TBI compared with those without a prior TBI. In fully adjusted models, men and women who had sustained a TBI were about 2.5 times more likely to be incarcerated than men and women who had not sustained a TBI. INTERPRETATION Traumatic brain injury was associated with an increased risk of incarceration among men and women in Ontario. Our research highlights the importance of designing primary, secondary and tertiary prevention strategies to mitigate risk of TBI and incarceration in the population.


Partner abuse | 2014

Profile of female perpetrators of intimate partner violence in an offender population: Implications for treatment.

Lynn A. Stewart; Natalie Gabora; Nicole Allegri; Maria Claire Slavin-Stewart

Despite evidence that the incidence of female-to-male intimate partner violence (IPV) in the general population is as high as that of male-to-female intimate violence, until recently little attention has been devoted to understanding women perpetrators of partner violence or to the design of programs to address their violence. This study explored the characteristics of female perpetrators of IPV in an offender population and examined the context, consequences, and motives for their aggression. There were 897 women serving a federal sentence in the Correctional Service of Canada at the time of data extraction, of whom 15% (n = 135) had a history of IPV. Results indicated that these offenders were most often classified as moderate criminal risk and high criminogenic need. Most had been victims of severe abuse during their youth and in adult relationships. Women’s motives for violence were diverse. Although most women had a history of mutual violence with their partners, 64% were the primary perpetrators in at least 1 incident. Violence in self-defense or in defense of their children were the least frequently coded categories. Similar to a comparison group of male offenders, the Spousal Assault Risk Assessment tool indicated that the most common risk factors associated with women’s IPV included past physical assault against intimate partners, substance abuse, and employment problems. These findings reinforce the need for a correctional programming targeting the diverse circumstances and motivations of women who are violent against their partners.

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Geoff Wilton

Correctional Service of Canada

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Natalie Gabora

Correctional Service of Canada

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Amanda Nolan

Correctional Service of Canada

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Janelle N. Beaudette

Correctional Service of Canada

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Jenelle Power

Correctional Service of Canada

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Jeremy Sapers

Correctional Service of Canada

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Jennie Thompson

Correctional Service of Canada

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