Factor Analysis and Reliability of the Family Stigma in
Alzheimer’s Disease Scale-Thai Version
Sudarat Pianchob PhD*, Weerasak Muangpaisan MD**, Pitiporn Siritipakorn MNS***
Affiliation :
* Department of Mental Health and Psychiatric Nursing, Faculty of Nursing, Mahidol University, Bangkok, Thailand
** Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
*** Department of Nursing Siriraj Hospital, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
Objective : To evaluate the validity and reliability of the Family Stigma in Alzheimer’s Disease Scale (FS-ADS) (Thai version)
in family caregivers of persons with Alzheimer’s disease.
Material and Method: One hundred ninety-three Thai family caregivers of person with Alzheimer’s disease were studied.
Exploratory factor analysis with principle component analysis and varimax rotation was performed to assess factor structures.
Cronbach’s alpha coefficient was calculated to estimate reliability.
Results : The results revealed acceptable reliability with a Cronbach’s alpha coefficient of 0.77. Analysis of items in each
dimension (caregivers’ stigma, lay persons’ stigma, and structural stigma) and a comparison between the original FS-ADS
and the FS-ADS (Thai version) showed that two dimensions (caregivers’ stigma and lay persons’ stigma) had lower number
of factors and lower cumulative percentages than the original version. However, an overall comparison between the two
versions showed that each factor in the Thai version was similar to that of the original version.
Conclusion : The overall results of exploratory factors analysis in the present study revealed good psychometric properties
of the FS-ADS (Thai version). Accordingly, the FS-ADS (Thai version) was found to be a reliable and valid instrument for
assessing stigmatization experienced by the Thai family caregivers providing care to persons with Alzheimer’s disease.
Some questions on the FS-ADS (Thai version) may benefit from additional modification to make this tool more appropriately
adapted to a Thai sociocultural context.
Keywords : Family stigma in Alzheimer’s disease scale, FS-ADS, Stigma, Family caregivers, Alzheimer’s disease, Thai
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