Validation of the Turkish version of the self-evaluation of negative symptoms scale (SNS)

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dc.contributor.authorPolat I.
dc.contributor.authorInce Guliyev E.
dc.contributor.authorElmas S.
dc.contributor.authorKarakaş S.
dc.contributor.authorAydemir Ö.
dc.contributor.authorÜçok A.
dc.date.accessioned2024-07-22T08:04:54Z
dc.date.available2024-07-22T08:04:54Z
dc.date.issued2022
dc.description.abstractObjectives: The Self-Evaluation of Negative Symptoms Scale (SNS) is a self-report scale that evaluates a patient’s subjective experience on all five domains of the negative symptoms. This study aimed to present the adaptation and validation study of the Turkish version of SNS(SNS-TR). Methods: Seventy-five patients and 50 controls were recruited for this study. After the approval of the translation, participants were asked to fill out SNS-TR by themselves. They were interviewed with the Brief Negative Symptoms Scale (BNSS), Positive and Negative Syndrome Scale (PANSS), and Calgary Depression Scale for Schizophrenia (CDSS). Results: SNS-TR showed good internal consistency in the reliability analysis with Cronbach’s alpha= 0.873. Subscale-total score correlation coefficients were significant (p < 0.01). In the validity analyses, the total and subscale scores of SNS-TR showed positive correlations with the total and subscales of BNSS, with only one exception of BNSS lack of distress subscales. The total score of SNS-TR demonstrated a significant correlation with PANSS-total, PANSS-negative subscale, PANSS-general subscale, and CDSS scores. Confirmatory factor analysis showed acceptable values for the five-factor structure, similar to the original version. Conclusion: To conclude, our study indicates that SNS-TR is an easily applicable self-evaluation tool with good psychometric properties for assessing negative symptoms. KEY POINTS SNS is a novel and easily applicable self-report scale for examining negative symptoms in schizophrenia patients, allowing them to evaluate their subjective experience on all five domains of the negative symptoms. It shows good internal consistency (α= 0.873) which is similar to the original version (α = 0.867). Confirmatory factor analysis scores were found in acceptable ranges and SNS-TR confirm the five-factor structure. Using this scale in clinical practice would empower both the physician’s examinations and patient participation through treatment and follow-up course. © 2022 Informa UK Limited, trading as Taylor & Francis Group.
dc.identifier.DOI-ID10.1080/13651501.2022.2082985
dc.identifier.issn13651501
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/12875
dc.language.isoEnglish
dc.publisherTaylor and Francis Ltd.
dc.subjectDiagnostic Self Evaluation
dc.subjectHumans
dc.subjectPsychiatric Status Rating Scales
dc.subjectPsychometrics
dc.subjectReproducibility of Results
dc.subjectSchizophrenia
dc.subjectadult
dc.subjectArticle
dc.subjectCalgary Depression Scale
dc.subjectclinical practice
dc.subjectconfirmatory factor analysis
dc.subjectcontrolled study
dc.subjectcorrelation coefficient
dc.subjectCronbach alpha coefficient
dc.subjectdepression
dc.subjectdistress syndrome
dc.subjectfemale
dc.subjectfollow up
dc.subjecthealth survey
dc.subjecthuman
dc.subjectinternal consistency
dc.subjectmajor clinical study
dc.subjectmale
dc.subjectnegative syndrome
dc.subjectpatient participation
dc.subjectPositive and Negative Syndrome Scale
dc.subjectpositive syndrome
dc.subjectreliability
dc.subjectself evaluation
dc.subjectself report
dc.subjectself-evaluation of negative symptoms scale
dc.subjectvalidation process
dc.subjectvalidation study
dc.subjectpsychological rating scale
dc.subjectpsychometry
dc.subjectreproducibility
dc.subjectschizophrenia
dc.titleValidation of the Turkish version of the self-evaluation of negative symptoms scale (SNS)
dc.typeArticle

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