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Development and psychometric evaluation of the Dementia Public Stigma Scale

Citation

Kim, S and Eccleston, C and Klekociuk, S and Cook, PS and Doherty, K, Development and psychometric evaluation of the Dementia Public Stigma Scale, International Journal of Geriatric Psychiatry, 37, (2) pp. 1-9. ISSN 0885-6230 (2022) [Refereed Article]

Copyright Statement

© 2021 John Wiley & Sons Ltd

DOI: doi:10.1002/gps.5672

Abstract

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 Details

Item Type:Refereed Article
Keywords:dementia, stigma, discrimination, scale development, validation
Research Division:Psychology
Research Group:Applied and developmental psychology
Research Field:Testing, assessment and psychometrics
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Mental health
UTAS Author:Kim, S (Dr Sarang Kim)
UTAS Author:Eccleston, C (Dr Claire Eccleston)
UTAS Author:Klekociuk, S (Dr Shannon Klekociuk)
UTAS Author:Cook, PS (Dr Peta Cook)
UTAS Author:Doherty, K (Dr Kathleen Doherty)
ID Code:148498
Year Published:2022
Deposited By:Wicking Dementia Research and Education Centre
Deposited On:2022-01-17
Last Modified:2022-03-10
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