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Intellectual Deficits and Restoration to Competency to Stand Trial: An Examination of IQ Cut off Scores

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Title: Intellectual Deficits and Restoration to Competency to Stand Trial: An Examination of IQ Cut off Scores
Language: English
Authors: Karen Grabowski (ORCID 0000-0002-3796-8248), Robert Morgan, Faith Scanlon
Source: Journal of Intellectual Disabilities. 2024 28(4):1038-1052.
Availability: SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: https://sagepub.com
Peer Reviewed: Y
Page Count: 15
Publication Date: 2024
Document Type: Journal Articles
Reports - Research
Descriptors: Intelligence Quotient, Intelligence Differences, Intellectual Disability, Court Litigation, Competence, Cognitive Ability, Psychiatric Hospitals
Geographic Terms: Missouri
DOI: 10.1177/17446295231218782
ISSN: 1744-6295
1744-6309
Abstract: Intellectual functioning impacts defendants' competence to stand trial, though research on this population remains limited. This study replicated and advanced prior work, focusing on defendants' demographic, clinical, cognitive, and criminal justice variables and their association with length of hospitalization and restoration determinations. Participants were 74 male and female criminal defendants in a midwestern state who were adjudicated incompetent to stand trial, had a diagnosis related to intellectual deficits, and completed competency restoration. Most defendants (83.7%) were restored to competency. Demographic factors were unrelated to restoration outcomes; violence of alleged offense predicted shorter hospitalization. Receiver Operating Characteristic Curve analyses determined an IQ score cut-off of 63.5 for which participants were of greater likelihood to be determined restored, providing guidance on the likelihood of restoration for defendants with intellectual disability related diagnoses. Specifically, this score can be used with clinical data to inform competency determinations for defendants with cognitive deficits.
Abstractor: As Provided
Entry Date: 2024
Accession Number: EJ1450143
Database: ERIC
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  Data: Intellectual Deficits and Restoration to Competency to Stand Trial: An Examination of IQ Cut off Scores
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  Data: <searchLink fieldCode="AR" term="%22Karen+Grabowski%22">Karen Grabowski</searchLink> (ORCID <externalLink term="https://orcid.org/0000-0002-3796-8248">0000-0002-3796-8248</externalLink>)<br /><searchLink fieldCode="AR" term="%22Robert+Morgan%22">Robert Morgan</searchLink><br /><searchLink fieldCode="AR" term="%22Faith+Scanlon%22">Faith Scanlon</searchLink>
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  Data: <searchLink fieldCode="SO" term="%22Journal+of+Intellectual+Disabilities%22"><i>Journal of Intellectual Disabilities</i></searchLink>. 2024 28(4):1038-1052.
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  Data: SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: https://sagepub.com
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  Data: <searchLink fieldCode="DE" term="%22Intelligence+Quotient%22">Intelligence Quotient</searchLink><br /><searchLink fieldCode="DE" term="%22Intelligence+Differences%22">Intelligence Differences</searchLink><br /><searchLink fieldCode="DE" term="%22Intellectual+Disability%22">Intellectual Disability</searchLink><br /><searchLink fieldCode="DE" term="%22Court+Litigation%22">Court Litigation</searchLink><br /><searchLink fieldCode="DE" term="%22Competence%22">Competence</searchLink><br /><searchLink fieldCode="DE" term="%22Cognitive+Ability%22">Cognitive Ability</searchLink><br /><searchLink fieldCode="DE" term="%22Psychiatric+Hospitals%22">Psychiatric Hospitals</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Missouri%22">Missouri</searchLink>
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  Data: 10.1177/17446295231218782
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  Data: Intellectual functioning impacts defendants' competence to stand trial, though research on this population remains limited. This study replicated and advanced prior work, focusing on defendants' demographic, clinical, cognitive, and criminal justice variables and their association with length of hospitalization and restoration determinations. Participants were 74 male and female criminal defendants in a midwestern state who were adjudicated incompetent to stand trial, had a diagnosis related to intellectual deficits, and completed competency restoration. Most defendants (83.7%) were restored to competency. Demographic factors were unrelated to restoration outcomes; violence of alleged offense predicted shorter hospitalization. Receiver Operating Characteristic Curve analyses determined an IQ score cut-off of 63.5 for which participants were of greater likelihood to be determined restored, providing guidance on the likelihood of restoration for defendants with intellectual disability related diagnoses. Specifically, this score can be used with clinical data to inform competency determinations for defendants with cognitive deficits.
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        Value: 10.1177/17446295231218782
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      – SubjectFull: Intelligence Differences
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      – SubjectFull: Intellectual Disability
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      – SubjectFull: Court Litigation
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      – SubjectFull: Competence
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      – SubjectFull: Cognitive Ability
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      – SubjectFull: Psychiatric Hospitals
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      – SubjectFull: Missouri
        Type: general
    Titles:
      – TitleFull: Intellectual Deficits and Restoration to Competency to Stand Trial: An Examination of IQ Cut off Scores
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            NameFull: Faith Scanlon
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              Type: published
              Y: 2024
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