The prevalence and nature of intellectual disability in Norwegian prisons

Søndenaa, Erik; Rasmussen, Kirsten; Palmstierna, Tom; Nøttestad, Jim Aage

doi:10.1111/j.1365-2788.2008.01072.x

Cited by 95 publications

(110 citation statements)

References 25 publications

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“…This finding is congruent with results from previous studies (Ford et al, 2008;Sondenaa et al, 2007Sondenaa et al, , 2008Sondenaa et al, , 2011. The correlation of 0.69 in this study lies within the range of results of previous studies using the WAIS-III as a criterion of validity: Sondenaa et al (2007) found a correlation of 0.81 in a psychiatric setting, whereas Ford et al (2008) found a correlation of 0.55 in an adolescent offender sample.…”

Section: Discussionsupporting

confidence: 91%

“…The assessment results in an index that had been found to correlate significantly with those on the Kaufman Brief Intelligence Test and on the Vineland Adaptive Behavior Scales (Hayes, 2002). The HASI also correlated significantly with the WASI (Sondenaa et al, 2008(Sondenaa et al, , 2011 and the WAIS-III (Ford et al, 2008;Sondenaa et al, 2007). Using the original HASI cut-off score of 85 (Hayes, 2002), previous research using a Receiver Operating Characteristic (ROC) curve analysis have reported a sensitivity of 100% using the WAIS-III (Sondenaa et al, 2007) or WASI (Sondenaa et al, 2011) as a criterion validity and a specificity of 35.4% when using the WASI (Sondenaa et al, 2011), and 57% when using the WAIS-III (Sondenaa et al, 2007) …”

Section: Procedures and Instrumentsmentioning

confidence: 95%

“…However, the Receiver Operating Characteristic (ROC) curve analysis with a HASI cut off score of 85 only presented a specificity of 65.2% and a sensitivity of 80%. In Norway, the instrument has been demonstrated to be valid in an offender as well as in a non-offender sample, but a lower cut-off value than the original cut-off value of 85 was SCREEN ID IN PERSONS WITH SUBSTANCE ABUSE PROBLEM 6 suggested (Sondenaa, Bjorgen, & Nottestad, 2007;Sondenaa, Nygard, Nottestad, & Linaker, 2011;Sondenaa, Rasmussen, Palmstierna, & Nottestad, 2008). In an offender sample of inmates of six prisons, Sondenaa and his colleagues (2008) For the Dutch language version of the HASI the validity has never been examined.…”

Section: Screen Id In Persons With Substance Abuse Problemmentioning

confidence: 99%

“…Ford et al, 2008;Hayes, 2002;McKenzie, Michie, Murray, & Hales, 2012;Sondenaa, Rasmussen, Palmstierna, & Nottestad, 2008) and/or the mental health system (MHS; e.g. Sondenaa, Bjorgen, & Nottestad, 2007;Sondenaa, Nygard, Nottestad, & Linaker, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Screening for intellectual disability in persons with a substance abuse problem: Exploring the validity of the Hayes Ability Screening Index in a Dutch-speaking sample

Vanheule

Vanderplasschen

et al. 2015

Research in Developmental Disabilities

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There is an increasing interest in screening instruments to detect Intellectual Disability (ID) in a quick and accurate way in mental health services as well as in the criminal justice system in order to provide appropriate support for people with undetected needs caused by ID. An instrument that has been proven to be useful in both settings is the Hayes Ability Screening Index (HASI). This study assessed the validity of the Dutch version of the HASI in persons with a substance abuse problem residing in mental health services, whether or not mandated to treatment by court order. The HASI was conducted along with the Wechsler Adult Intelligence Scale III as the criterion for validity to 90 participants. Additionally, the influence of psychiatric disorder and medication use on the HASI result was examined. A significant positive relationship was found between the two instruments, demonstrating convergent validity. Using a Receiver Operating Characteristic (ROC) curve analysis, the discriminative ability of the HASI with a cut-off score of 85 was found to be adequate, yielding in a good balance between sensitivity and specificity. The HASI was not distorted by the presence of the substance abuse problem or other psychiatric illnesses and medication did not influence the HASI scores in this study. These findings indicate that the HASI provides a time-efficient and resource-conscious way to detect ID in persons with a substance problem, thus addressing a critical need in mental health settings.

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Section: Discussionsupporting

confidence: 91%

Section: Procedures and Instrumentsmentioning

confidence: 95%

Section: Screen Id In Persons With Substance Abuse Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Screening for intellectual disability in persons with a substance abuse problem: Exploring the validity of the Hayes Ability Screening Index in a Dutch-speaking sample

Vanheule

Vanderplasschen

et al. 2015

Research in Developmental Disabilities

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“…The present authors have conducted research on ID in a prison population, where both types of problems are significant, and where quality of care is impacted [12]. When presented with the instrument and evidence above, we approached the originators of the PDCC and received permission to do a Norwegian translation.…”

Section: Introductionmentioning

confidence: 99%

Validation of a Brief Screening Instrument for Emotionally Unstable and Dissocial Personality Disorder Characteristics in Community Service Users with Intellectual Disabilities

Søndenaa¹,

Nonstad²,

Dragsten³

et al. 2017

JSS

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Personality disorder characteristics can be a complicating factor among people with intellectual disabilities (ID). Persons exhibiting such features are associated with risk for violence and service instability. The purpose of this paper was to study an evaluative tool for personality disorders in people with ID and mental health disorders in community-based services. A new staff-rated instrument, the Personality Disorder Characteristics Checklist (PDCC; Taylor & Novaco, 2013) [1], was used. This tool is designed to screen for ICD-10 dissocial and emotionally unstable personality traits. In the study, the instrument was assessed for both its reliability and validity. Fifty-two randomly selected patients with ID in the specialist habilitation services in Norway were scored on the PDSS. The male/female proportion was 30/22 and the mean age was 36.8 (SD = 13.4). The internal consistency of the PDCC was found to be very good. Supportive evidence for concurrent and discriminant validity was obtained in conjunction with other relevant staff-rated instruments. There were twenty-three patients who screened above cut-off for the diagnostic criteria of a personality disorder and two patients previously diagnosed with personality disorder. This demonstrates that such disorders are present in people with ID. It also suggests that such characteristics may have been neglected in the past in providing services to this population.

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Offenders with Developmental Disabilities

Lindsay¹,

Taylor²,

Sturmey³

2014

Evidence‐Based Practice and Intellectual Disabilities

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The prevalence and nature of intellectual disability in Norwegian prisons

Abstract: The prevalence of ID in Norwegian inmates is significant, measured by WASI and HASI. Identification, rehabilitation and care, concerning an intellectual handicap, are mostly absent in the Norwegian criminal justice system.

Cited by 95 publications

References 25 publications

Screening for intellectual disability in persons with a substance abuse problem: Exploring the validity of the Hayes Ability Screening Index in a Dutch-speaking sample

Screening for intellectual disability in persons with a substance abuse problem: Exploring the validity of the Hayes Ability Screening Index in a Dutch-speaking sample

Validation of a Brief Screening Instrument for Emotionally Unstable and Dissocial Personality Disorder Characteristics in Community Service Users with Intellectual Disabilities

Offenders with Developmental Disabilities

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