Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance users
Abstract Background Current evidence suggests that the addiction on one substance may underpin or affect addiction on another in polysubstance users. However, there is no tool that has been shown to have psychometric validation for assessment of the severity of khat addiction in polysubstance users....
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doaj-bc79000e46184f29921d40d9d6de61bb2020-11-25T02:12:43ZengBMCBMC Psychiatry1471-244X2018-10-011811710.1186/s12888-018-1917-2Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance usersMd. Dilshad Manzar0Majed Alamri1Salahuddin Mohammed2Mohammed Ali Yunus Khan3Vijay Kumar Chattu4Seithikurippu R Pandi-Perumal5Ahmed S Bahammam6Department of Nursing, College of Applied Medical Sciences, Majmaah UniversityDepartment of Nursing, College of Applied Medical Sciences, Majmaah UniversityDepartment of Pharmacy, College of Medicine and Health Sciences, Mizan-Tepi University (Mizan Campus)Department of Biomedical Sciences, College of Medicine and Health Sciences, Mizan-Tepi University, (Mizan Campus)Faculty of Medical Sciences, University of West IndiesSomnogen Canada IncDepartment of Medicine, College of Medicine, The University Sleep Disorders Center, King Saud UniversityAbstract Background Current evidence suggests that the addiction on one substance may underpin or affect addiction on another in polysubstance users. However, there is no tool that has been shown to have psychometric validation for assessment of the severity of khat addiction in polysubstance users. Methods Polysubstance users with khat chewing habit (n = 178, age = 25.8 ± 3.6, BMI = 23.3 ± 2.8 kg/m2) were recruited from randomly selected houses for a cross-sectional study in Mizan, Ethiopia. The survey including severity of dependence scale for khat (SDS-khat), a brief metacognition questionnaire, and a semi-structured socio-demographics tool were administered by trained interviewers. Results There was no ceiling effect or floor effect in the SDS-Khat scores. Internal consistency was moderate (Cronbach’s alpha = 0.58). Internal homogeneity was adequate (Item-total correlations of the SDS-Khat; r ≥ 0.55). Significant negative correlations between the SDS-Khat and the metacognition (r = −.19 to −.34, p < 0.05 or p < 0.01) indicated convergent validity. The findings of exploratory factor analysis were non-unanimous with a suggestion of two models, i.e., a 2-factor and a 1-factor model, while the confirmatory factor analysis favored 1-Factor model. Conclusion The SDS-Khat has adequate psychometric validity for the assessment of psychological severity of khat addiction in the polysubstance users.http://link.springer.com/article/10.1186/s12888-018-1917-2SDS-KhatAddictionAlcoholCatha edulisConsistencyFactor analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Md. Dilshad Manzar Majed Alamri Salahuddin Mohammed Mohammed Ali Yunus Khan Vijay Kumar Chattu Seithikurippu R Pandi-Perumal Ahmed S Bahammam |
spellingShingle |
Md. Dilshad Manzar Majed Alamri Salahuddin Mohammed Mohammed Ali Yunus Khan Vijay Kumar Chattu Seithikurippu R Pandi-Perumal Ahmed S Bahammam Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance users BMC Psychiatry SDS-Khat Addiction Alcohol Catha edulis Consistency Factor analysis |
author_facet |
Md. Dilshad Manzar Majed Alamri Salahuddin Mohammed Mohammed Ali Yunus Khan Vijay Kumar Chattu Seithikurippu R Pandi-Perumal Ahmed S Bahammam |
author_sort |
Md. Dilshad Manzar |
title |
Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance users |
title_short |
Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance users |
title_full |
Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance users |
title_fullStr |
Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance users |
title_full_unstemmed |
Psychometric properties of the severity of the dependence scale for Khat (SDS-Khat) in polysubstance users |
title_sort |
psychometric properties of the severity of the dependence scale for khat (sds-khat) in polysubstance users |
publisher |
BMC |
series |
BMC Psychiatry |
issn |
1471-244X |
publishDate |
2018-10-01 |
description |
Abstract Background Current evidence suggests that the addiction on one substance may underpin or affect addiction on another in polysubstance users. However, there is no tool that has been shown to have psychometric validation for assessment of the severity of khat addiction in polysubstance users. Methods Polysubstance users with khat chewing habit (n = 178, age = 25.8 ± 3.6, BMI = 23.3 ± 2.8 kg/m2) were recruited from randomly selected houses for a cross-sectional study in Mizan, Ethiopia. The survey including severity of dependence scale for khat (SDS-khat), a brief metacognition questionnaire, and a semi-structured socio-demographics tool were administered by trained interviewers. Results There was no ceiling effect or floor effect in the SDS-Khat scores. Internal consistency was moderate (Cronbach’s alpha = 0.58). Internal homogeneity was adequate (Item-total correlations of the SDS-Khat; r ≥ 0.55). Significant negative correlations between the SDS-Khat and the metacognition (r = −.19 to −.34, p < 0.05 or p < 0.01) indicated convergent validity. The findings of exploratory factor analysis were non-unanimous with a suggestion of two models, i.e., a 2-factor and a 1-factor model, while the confirmatory factor analysis favored 1-Factor model. Conclusion The SDS-Khat has adequate psychometric validity for the assessment of psychological severity of khat addiction in the polysubstance users. |
topic |
SDS-Khat Addiction Alcohol Catha edulis Consistency Factor analysis |
url |
http://link.springer.com/article/10.1186/s12888-018-1917-2 |
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