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Psychometric Properties of the Symptom Questionnaire--48 in Adults with Mild Intellectual Disability or Borderline Intellectual Functioning in Mental Health Care

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Bibliographic Details
Title: Psychometric Properties of the Symptom Questionnaire--48 in Adults with Mild Intellectual Disability or Borderline Intellectual Functioning in Mental Health Care
Language: English
Authors: Renate A. van der Heijden, Kim van Zutven, Inge P. C. Verhagen, Renate Venhorst, Jeanet G. Nieuwenhuis, Hubert P. L. M. Korzilius, Paul T. van der Heijden, Robert Didden
Source: Journal of Mental Health Research in Intellectual Disabilities. 2025 18(3):265-279.
Availability: Routledge. Available from: Taylor & Francis, Ltd. 530 Walnut Street Suite 850, Philadelphia, PA 19106. Tel: 800-354-1420; Tel: 215-625-8900; Fax: 215-207-0050; Web site: http://www.tandf.co.uk/journals
Peer Reviewed: Y
Page Count: 15
Publication Date: 2025
Document Type: Journal Articles
Reports - Research
Descriptors: Psychometrics, Questionnaires, Adults, Mild Intellectual Disability, Mental Health, Test Validity, Test Reliability, Foreign Countries, Symptoms (Individual Disorders)
Geographic Terms: Netherlands
DOI: 10.1080/19315864.2024.2416697
ISSN: 1931-5864
1931-5872
Abstract: Introduction: Increasingly more self-report measures of psychological distress are used as screening tools in mental health care for treatment planning and routing outcome monitoring. Research on the psychometric properties and utility of these measures in individuals with mild intellectual disability or borderline intellectual functioning (MID-BIF) are limited, even though this target group accounts for a large proportion of individuals treated in mental health care services. The aim of the present study was to explore the psychometric properties of the SQ-48, a self-report on psychological distress, when used in adults with MID-BIF. Methods: The SQ-48 was administered to 213 patients of two specialist mental health services for MID-BIF in the Netherlands. A second administration took place after three weeks in a test-retest design (N = 24). Results: The SQ-48 has adequate internal consistency, discriminant validity, test-retest reliability, and factor structure when used in adults with MID-BIF. Conclusion: This study provides preliminary evidence that the limitations in intellectual and adaptive functioning in people with MID-BIF do not influence the reliability and validity of the SQ-48 and can be used reliably in this population.
Abstractor: As Provided
Entry Date: 2026
Accession Number: EJ1502931
Database: ERIC
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Abstract:Introduction: Increasingly more self-report measures of psychological distress are used as screening tools in mental health care for treatment planning and routing outcome monitoring. Research on the psychometric properties and utility of these measures in individuals with mild intellectual disability or borderline intellectual functioning (MID-BIF) are limited, even though this target group accounts for a large proportion of individuals treated in mental health care services. The aim of the present study was to explore the psychometric properties of the SQ-48, a self-report on psychological distress, when used in adults with MID-BIF. Methods: The SQ-48 was administered to 213 patients of two specialist mental health services for MID-BIF in the Netherlands. A second administration took place after three weeks in a test-retest design (N = 24). Results: The SQ-48 has adequate internal consistency, discriminant validity, test-retest reliability, and factor structure when used in adults with MID-BIF. Conclusion: This study provides preliminary evidence that the limitations in intellectual and adaptive functioning in people with MID-BIF do not influence the reliability and validity of the SQ-48 and can be used reliably in this population.
ISSN:1931-5864
1931-5872
DOI:10.1080/19315864.2024.2416697