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Development and psychometric evaluation of the Dementia Public Stigma Scale

Kim, S ORCID: 0000-0003-4869-9255, Eccleston, C ORCID: 0000-0002-7913-6888, Klekociuk, S ORCID: 0000-0001-8654-2924, Cook, PS ORCID: 0000-0002-5985-193X and Doherty, K ORCID: 0000-0002-0122-0123 2022 , 'Development and psychometric evaluation of the Dementia Public Stigma Scale' , International Journal of Geriatric Psychiatry, vol. 37, no. 2 , pp. 1-9 , doi: 10.1002/gps.5672.

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Objectives Dementia is a stigmatised condition and dementia-related stigma is associated with low self-esteem, poor psychological wellbeing, social isolation and poor quality of life in people living with dementia and their families. There is, however, a lack of valid measures that accurately quantify dementia-related stigma in the general public. This study reports the initial psychometric evaluation of a new tool designed to measure dementia-related public stigma amongst community dwelling adults. Methods A sample of 3250 individuals aged 18 and over completed an online survey on their beliefs and feelings regarding dementia and people living with dementia, and their behavioural intentions towards people living with dementia. Exploratory factor analysis (EFA) using Maximum Likelihood with oblique rotation was performed to extract factors. Confirmatory factor analysis (CFA) was used to confirm the factor structure using goodness-of-fit index (GFI), the comparative fit index (CFI), and the root mean square error of approximation (RMSEA) to evaluate the model fit. Internal consistency was measured for the final scale version. Results EFA resulted in a 16-item, 5-factor model (Fear and discomfort, Negative perceptions, Positive perceptions, Burden, and Exclusion) that explained 50.43% of the total variance. The CFA-estimated model demonstrated a good fit; all fit indices were larger than 0.95 (GFI = 0.967, CFI = 0.959) and smaller than 0.05 (RMSEA = 0.048). The final scale showed moderate to high reliability scores ranging from α = 0.738 to 0.805. Conclusions The Dementia Public Stigma Scale is a tool with reliability, and some demonstrated validity. This scale can be used to measure the public stigma of dementia amongst adults and may be used in the development and evaluation of interventions aimed at dementia-related stigma reduction.

Item Type: Article
Authors/Creators:Kim, S and Eccleston, C and Klekociuk, S and Cook, PS and Doherty, K
Keywords: dementia, stigma, discrimination, scale development, validation
Journal or Publication Title: International Journal of Geriatric Psychiatry
Publisher: John Wiley & Sons Ltd
ISSN: 0885-6230
DOI / ID Number: 10.1002/gps.5672
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© 2021 John Wiley & Sons Ltd

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