Screening for offenders with an intellectual disability: The validity of the Learning Disability Screening Questionnaire

McKenzie, Karen; Michie, Amanda M.; Murray, Aja Louise; Hales, Charlene

doi:10.1016/j.ridd.2011.12.006

Cited by 56 publications

(81 citation statements)

References 23 publications

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“…The analysis showed a sensitivity and specificity of the HASI (cut-off at 85) of 80% and above, which is considered to be acceptable (Glascoe, 2005;McKenzie, Michie, Murray, & Hales, 2012). Consequently, we conclude that the HASI cut-off of 85 might be effective for use among persons with a substance abuse problem in general mental health services: it is sensitive enough in selecting persons with an intellectual disability, and at the same time also detects persons without an intellectual disability.…”

Section: Discussionmentioning

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: Discussionmentioning

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%

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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“…For example, there has been an increasing interest in identifying children and adolescents who come in contact with forensic services (Ford, Andrews, Booth, Dibdin, Hardingham, & Kelly, 2008). Recent research with the adult version of the intellectual screening tool (McKenzie, Michie, Murray & Hales, 2012), from which the CAIDS-Q was partly developed, demonstrated both convergent and discriminative validity of the LDSQ in forensic settings, but suggested that a higher cut-off score may increase the sensitivity of the tool when used in such services.…”

Section: Discussionmentioning

confidence: 99%

The evaluation of a screening tool for children with an intellectual disability: The Child and Adolescent Intellectual Disability Screening Questionnaire

McKenzie¹,

Paxton²,

Murray³

et al. 2012

Research in Developmental Disabilities

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“…A full description of the development and validation of the LDSQ can be found in McKenzie and Paxton (2006) and McKenzie, Michie, Murray, and Hales (2012).…”

Section: Methodsmentioning

confidence: 99%

The accuracy of the Learning Disability Screening Questionnaire (LDSQ) in classifying severity of impairment: A brief report

Murray

McKenzie

2014

Journal of Intellectual & Developmental Disability

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Background: Outcomes for people with an intellectual disability (ID) may differ depending on the severity of the condition. This study evaluated whether a screening tool could give an early indication of severity, in order to help inform future support needs. Methods: ROC analysis was used to examine how well the Learning Disability ScreeningQuestionnaire (LDSQ) could classify individuals (n=238) in terms of severity of intellectual impairment.Results: Mean LDSQ scores increased across diagnostic categories from 'severe impairment' to 'no ID' as expected. The optimal cut-points estimated based on the ROC surface and Youden Index provided correct classification probabilities for the severe, significant and non-ID groups of 0.55, 0.50 and 0.86, and 0.80, 0.32 and 0.84 respectively.Conclusions: While the LDSQ can accurately discriminate between those with and without intellectual disability, results indicated that it may not accurately classify individuals in terms of severity of intellectual impairment.

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Screening for offenders with an intellectual disability: The validity of the Learning Disability Screening Questionnaire

Cited by 56 publications

References 23 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

The evaluation of a screening tool for children with an intellectual disability: The Child and Adolescent Intellectual Disability Screening Questionnaire

The accuracy of the Learning Disability Screening Questionnaire (LDSQ) in classifying severity of impairment: A brief report

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