Symptom checklist-90 (SCL-90) in a Thai sample

Background: Symptom Checklist-90 (SCL-90) has been used on both normal and clinical samples in Thailand over a long period. However, its validity and reliability have not yet been systemically reported. Objective: Survey the validity and reliability of SCL-90 in a more extensive way, using a normal...

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Main Authors: Wongpakaran T., Wongpakaran N., Boripuntakul T.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-80053061425&partnerID=40&md5=692914a73cdba4b8c60a63e88d5b5780
http://www.ncbi.nlm.nih.gov/pubmed/21970206
http://cmuir.cmu.ac.th/handle/6653943832/3003
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-30032014-08-30T02:25:38Z Symptom checklist-90 (SCL-90) in a Thai sample Wongpakaran T. Wongpakaran N. Boripuntakul T. Background: Symptom Checklist-90 (SCL-90) has been used on both normal and clinical samples in Thailand over a long period. However, its validity and reliability have not yet been systemically reported. Objective: Survey the validity and reliability of SCL-90 in a more extensive way, using a normal sample of people throughout Thailand, and investigate the psychometric properties of the Thai version of SCL-90. Material and Method: Four hundred forty eight subjects participated in the present study of which 50.4% were male and with ages ranging from eighteen to 90 years, by providing demographic data and completing the Thai version of SCL-90 and the 16-Personality Factor (16-PF) Questionnaire. The demographic data was analyzed using descriptive statistics, and Cronbach's alpha was used to determine its internal consistency. Factor and confirmatory factor analysis were performed to construct the validity, and convergent and discriminant validities were calculated to generate Pearson's correlation coefficients using the 16-PF subscales. Results: The mean of the global symptoms index was found to be 0.70 + 0.46, with the means of the symptoms ranging from 0.53 for Psychoticism to 0.98 for Obsessive-compulsive disorder. We found to be a significant difference in sub-scales across genders, age groups, geographic regions, educational levels, occupations, and incomes, but the symptom dimension patterns revealed were similar to those of previous studies. Depression and anxiety were the key components to show variance between the normal and clinical samples. The measurements demonstrated good internal consistency with Cronbach's alpha, at 0.97, but did not yield relevant correlations between some of the 16-PF sub-scales, as was expected. Moreover, factor analysis revealed that SCL-90 has a uni-dimensional construct. Conclusion: The Thai version of SCL-90 showed a good internal consistency, but poor discriminant validity with most items occurring for the depression, anxiety and interpersonal sensitivity dimensions. It is recommended that some of the items be revised for clinical studies. 2014-08-30T02:25:38Z 2014-08-30T02:25:38Z 2011 Article 1252208 21970206 JMTHB http://www.scopus.com/inward/record.url?eid=2-s2.0-80053061425&partnerID=40&md5=692914a73cdba4b8c60a63e88d5b5780 http://www.ncbi.nlm.nih.gov/pubmed/21970206 http://cmuir.cmu.ac.th/handle/6653943832/3003 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Background: Symptom Checklist-90 (SCL-90) has been used on both normal and clinical samples in Thailand over a long period. However, its validity and reliability have not yet been systemically reported. Objective: Survey the validity and reliability of SCL-90 in a more extensive way, using a normal sample of people throughout Thailand, and investigate the psychometric properties of the Thai version of SCL-90. Material and Method: Four hundred forty eight subjects participated in the present study of which 50.4% were male and with ages ranging from eighteen to 90 years, by providing demographic data and completing the Thai version of SCL-90 and the 16-Personality Factor (16-PF) Questionnaire. The demographic data was analyzed using descriptive statistics, and Cronbach's alpha was used to determine its internal consistency. Factor and confirmatory factor analysis were performed to construct the validity, and convergent and discriminant validities were calculated to generate Pearson's correlation coefficients using the 16-PF subscales. Results: The mean of the global symptoms index was found to be 0.70 + 0.46, with the means of the symptoms ranging from 0.53 for Psychoticism to 0.98 for Obsessive-compulsive disorder. We found to be a significant difference in sub-scales across genders, age groups, geographic regions, educational levels, occupations, and incomes, but the symptom dimension patterns revealed were similar to those of previous studies. Depression and anxiety were the key components to show variance between the normal and clinical samples. The measurements demonstrated good internal consistency with Cronbach's alpha, at 0.97, but did not yield relevant correlations between some of the 16-PF sub-scales, as was expected. Moreover, factor analysis revealed that SCL-90 has a uni-dimensional construct. Conclusion: The Thai version of SCL-90 showed a good internal consistency, but poor discriminant validity with most items occurring for the depression, anxiety and interpersonal sensitivity dimensions. It is recommended that some of the items be revised for clinical studies.
format Article
author Wongpakaran T.
Wongpakaran N.
Boripuntakul T.
spellingShingle Wongpakaran T.
Wongpakaran N.
Boripuntakul T.
Symptom checklist-90 (SCL-90) in a Thai sample
author_facet Wongpakaran T.
Wongpakaran N.
Boripuntakul T.
author_sort Wongpakaran T.
title Symptom checklist-90 (SCL-90) in a Thai sample
title_short Symptom checklist-90 (SCL-90) in a Thai sample
title_full Symptom checklist-90 (SCL-90) in a Thai sample
title_fullStr Symptom checklist-90 (SCL-90) in a Thai sample
title_full_unstemmed Symptom checklist-90 (SCL-90) in a Thai sample
title_sort symptom checklist-90 (scl-90) in a thai sample
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-80053061425&partnerID=40&md5=692914a73cdba4b8c60a63e88d5b5780
http://www.ncbi.nlm.nih.gov/pubmed/21970206
http://cmuir.cmu.ac.th/handle/6653943832/3003
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