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An International Validation of the Stigma Impact Scale With People With Dementia.

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Title: An International Validation of the Stigma Impact Scale With People With Dementia.
Authors: Bhatt, Jem, Evans‐Lacko, Sara, Scior, Katrina, Saunders, Rob
Source: International Journal of Geriatric Psychiatry. Jul2025, Vol. 40 Issue 7, p1-10. 10p.
Subjects: Statistical correlation, Goodness-of-fit tests, Research funding, Data analysis, Cronbach's alpha, Research methodology evaluation, Research evaluation, Descriptive statistics, Loneliness, Surveys, World health, Social integration, Psychometrics, Quality of life, Statistics, Research, Mathematical models, Dementia, Discrimination (Sociology), Factor analysis, Theory, Dementia patients, Social stigma, Social isolation
Abstract: Objective: A robust psychometric instrument is imperative to measure the devastating impact of self‐stigma in dementia to adequately inform policy and practice. Our objective was to evaluate the psychometric properties of the Stigma Impact Scale in a global sample of people with dementia. Method: Data were analysed from the World Alzheimer Report including 710 participants in 42 countries who completed the SIS. Detailed psychometric analyses of the SIS included estimating reliability, convergent validity with the Warwick‐Edinburgh mental Well‐being Scale (WEMWBS) and the Dementia Quality of Life instrument (DQoL), the factor structure of the measure (through both exploratory and confirmatory factor analysis). Results: The SIS and its subscales had 'good' to 'excellent' internal consistency (Cronbach's Alpha: 0.883–0.943). However, convergent validity correlations were not in the predicted direction; no significant correlations were noted between the SIS and the WEMWBS and DQoL. Factor analysis suggested marginal improvements in global fit indices for the observed model compared to the theoretical model, though none met the thresholds for acceptable fit. The final proposed model had three factors: rejection and secrecy, loneliness and belonging and perceived social isolation. Most SIS items were strongly endorsed by participants. Conclusion: The SIS is the most robustly tested instrument measuring self‐stigma in dementia. The SIS has good to excellent reliability and relevance to the target population, however future work is required to improve the factor structure of the scale. Further the results of the validity testing pose a number of theoretical and empirical questions for future research. Summary: Measuring self‐stigma in dementia with a robust, validated psychometric instrument would mean we could identify areas of concern for policy and practice.The Stigma Impact Scale (SIS), measuring self‐stigma in dementia, has been a valid and reliable measure in small samples but has never been subject to vigorous psychometric testingAll SIS items were endorsed by approximately 20% or more of people with dementia which suggests SIS items reflect relevant and identifiable constructs that resonate with the experience of dementiaResults of the current study confirm that SIS is a reliable measure in a global sample of people with dementia however validity and factor structure require further research efforts. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Geriatric Psychiatry is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: An International Validation of the Stigma Impact Scale With People With Dementia.
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  Data: <searchLink fieldCode="AR" term="%22Bhatt%2C+Jem%22">Bhatt, Jem</searchLink><br /><searchLink fieldCode="AR" term="%22Evans‐Lacko%2C+Sara%22">Evans‐Lacko, Sara</searchLink><br /><searchLink fieldCode="AR" term="%22Scior%2C+Katrina%22">Scior, Katrina</searchLink><br /><searchLink fieldCode="AR" term="%22Saunders%2C+Rob%22">Saunders, Rob</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Geriatric+Psychiatry%22">International Journal of Geriatric Psychiatry</searchLink>. Jul2025, Vol. 40 Issue 7, p1-10. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Statistical+correlation%22">Statistical correlation</searchLink><br /><searchLink fieldCode="DE" term="%22Goodness-of-fit+tests%22">Goodness-of-fit tests</searchLink><br /><searchLink fieldCode="DE" term="%22Research+funding%22">Research funding</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis%22">Data analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Cronbach's+alpha%22">Cronbach's alpha</searchLink><br /><searchLink fieldCode="DE" term="%22Research+methodology+evaluation%22">Research methodology evaluation</searchLink><br /><searchLink fieldCode="DE" term="%22Research+evaluation%22">Research evaluation</searchLink><br /><searchLink fieldCode="DE" term="%22Descriptive+statistics%22">Descriptive statistics</searchLink><br /><searchLink fieldCode="DE" term="%22Loneliness%22">Loneliness</searchLink><br /><searchLink fieldCode="DE" term="%22Surveys%22">Surveys</searchLink><br /><searchLink fieldCode="DE" term="%22World+health%22">World health</searchLink><br /><searchLink fieldCode="DE" term="%22Social+integration%22">Social integration</searchLink><br /><searchLink fieldCode="DE" term="%22Psychometrics%22">Psychometrics</searchLink><br /><searchLink fieldCode="DE" term="%22Quality+of+life%22">Quality of life</searchLink><br /><searchLink fieldCode="DE" term="%22Statistics%22">Statistics</searchLink><br /><searchLink fieldCode="DE" term="%22Research%22">Research</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+models%22">Mathematical models</searchLink><br /><searchLink fieldCode="DE" term="%22Dementia%22">Dementia</searchLink><br /><searchLink fieldCode="DE" term="%22Discrimination+%28Sociology%29%22">Discrimination (Sociology)</searchLink><br /><searchLink fieldCode="DE" term="%22Factor+analysis%22">Factor analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Theory%22">Theory</searchLink><br /><searchLink fieldCode="DE" term="%22Dementia+patients%22">Dementia patients</searchLink><br /><searchLink fieldCode="DE" term="%22Social+stigma%22">Social stigma</searchLink><br /><searchLink fieldCode="DE" term="%22Social+isolation%22">Social isolation</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Objective: A robust psychometric instrument is imperative to measure the devastating impact of self‐stigma in dementia to adequately inform policy and practice. Our objective was to evaluate the psychometric properties of the Stigma Impact Scale in a global sample of people with dementia. Method: Data were analysed from the World Alzheimer Report including 710 participants in 42 countries who completed the SIS. Detailed psychometric analyses of the SIS included estimating reliability, convergent validity with the Warwick‐Edinburgh mental Well‐being Scale (WEMWBS) and the Dementia Quality of Life instrument (DQoL), the factor structure of the measure (through both exploratory and confirmatory factor analysis). Results: The SIS and its subscales had 'good' to 'excellent' internal consistency (Cronbach's Alpha: 0.883–0.943). However, convergent validity correlations were not in the predicted direction; no significant correlations were noted between the SIS and the WEMWBS and DQoL. Factor analysis suggested marginal improvements in global fit indices for the observed model compared to the theoretical model, though none met the thresholds for acceptable fit. The final proposed model had three factors: rejection and secrecy, loneliness and belonging and perceived social isolation. Most SIS items were strongly endorsed by participants. Conclusion: The SIS is the most robustly tested instrument measuring self‐stigma in dementia. The SIS has good to excellent reliability and relevance to the target population, however future work is required to improve the factor structure of the scale. Further the results of the validity testing pose a number of theoretical and empirical questions for future research. Summary: Measuring self‐stigma in dementia with a robust, validated psychometric instrument would mean we could identify areas of concern for policy and practice.The Stigma Impact Scale (SIS), measuring self‐stigma in dementia, has been a valid and reliable measure in small samples but has never been subject to vigorous psychometric testingAll SIS items were endorsed by approximately 20% or more of people with dementia which suggests SIS items reflect relevant and identifiable constructs that resonate with the experience of dementiaResults of the current study confirm that SIS is a reliable measure in a global sample of people with dementia however validity and factor structure require further research efforts. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of International Journal of Geriatric Psychiatry is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/gps.70123
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 1
    Subjects:
      – SubjectFull: Statistical correlation
        Type: general
      – SubjectFull: Goodness-of-fit tests
        Type: general
      – SubjectFull: Research funding
        Type: general
      – SubjectFull: Data analysis
        Type: general
      – SubjectFull: Cronbach's alpha
        Type: general
      – SubjectFull: Research methodology evaluation
        Type: general
      – SubjectFull: Research evaluation
        Type: general
      – SubjectFull: Descriptive statistics
        Type: general
      – SubjectFull: Loneliness
        Type: general
      – SubjectFull: Surveys
        Type: general
      – SubjectFull: World health
        Type: general
      – SubjectFull: Social integration
        Type: general
      – SubjectFull: Psychometrics
        Type: general
      – SubjectFull: Quality of life
        Type: general
      – SubjectFull: Statistics
        Type: general
      – SubjectFull: Research
        Type: general
      – SubjectFull: Mathematical models
        Type: general
      – SubjectFull: Dementia
        Type: general
      – SubjectFull: Discrimination (Sociology)
        Type: general
      – SubjectFull: Factor analysis
        Type: general
      – SubjectFull: Theory
        Type: general
      – SubjectFull: Dementia patients
        Type: general
      – SubjectFull: Social stigma
        Type: general
      – SubjectFull: Social isolation
        Type: general
    Titles:
      – TitleFull: An International Validation of the Stigma Impact Scale With People With Dementia.
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            NameFull: Bhatt, Jem
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            NameFull: Evans‐Lacko, Sara
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            – D: 01
              M: 07
              Text: Jul2025
              Type: published
              Y: 2025
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            – TitleFull: International Journal of Geriatric Psychiatry
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