Evaluation of the SCL-9S, a short version of the symptom checklist-90-R, on psychiatric patients in Sweden by using Rasch analysis
2021 (English)In: Nordic Journal of Psychiatry, ISSN 0803-9488, E-ISSN 1502-4725, Vol. 75, no 7, p. 538-546Article in journal (Refereed) Published
Abstract [en]
PURPOSE: This study evaluates the dimensionality and differential item functioning of SCL-9S, a short version of the Symptom Checklist-90-R (SCL-90-R), on patients in psychiatric care.
MATERIAL AND METHODS: Based on the factor structure of the Swedish standardization and validation of the SCL-90-R, a nine-item index (SCL-9S) was developed consisting of the items most indicative for each of the nine subscales in SCL-90-R. Rasch analysis was used to evaluate the SCL-9S on a sample of 668 psychiatric outpatients and 167 inpatients across four Swedish regions.
RESULTS: The evaluation revealed that the SCL-9S was unidimensional, the items represented different levels of severity across a general psychological distress dimension, and the scale showed equity (no differential items functioning) across gender and patient groups.
CONCLUSION: The SCL-9S is a fast, structurally valid, and reliable tool for screening general psychological distress among men and women in psychiatric in- and outpatient services, and in combination with other instruments, it will be useful in epidemiological studies.
Place, publisher, year, edition, pages
Taylor & Francis, 2021. Vol. 75, no 7, p. 538-546
Keywords [en]
Rasch analysis, SCL-90-R, psychiatry, psychological distress, psychometric evaluation
National Category
Psychiatry
Identifiers
URN: urn:nbn:se:oru:diva-90982DOI: 10.1080/08039488.2021.1901988ISI: 000635004500001PubMedID: 33781164Scopus ID: 2-s2.0-85103386710OAI: oai:DiVA.org:oru-90982DiVA, id: diva2:1543969
Note
Funding Agencies:
Fund for Rehabilitation and Medical Research (Fonden)
Region Örebro County Research Committee (Forskningskommittén i Region Örebro län)
2021-04-132021-04-132022-01-04Bibliographically approved