title: Using the Affiliate Stigma Scale with caregivers of people with dementia: psychometric evaluation.
abstract: In this study, we examined the psychometric properties of the Affiliate Stigma Scale to measure affiliate stigma for caregivers of family members with dementia, a topic scantily covered in the literature.
  
  
  
  Two hundred seventy-one caregivers were recruited. Each completed the Affiliate Stigma Scale, Caregiver Burden Inventory, Taiwanese Depression Questionnaire, Beck Anxiety Inventory, and 28-item World Health Organization Quality of Life questionnaire. The data were evaluated for internal consistency and concurrent validity, and they were analyzed using Rasch statistics and confirmatory factor analysis (CFA).
  
  
  
  CFA and Rasch analysis suggested that the Affiliate Stigma Scale contains three underlying unidimensional concepts (cognition, affect, and behavior). The three concepts had satisfactory internal consistency (α = 0.822-0.855) and concurrent validity (r = 0.290-0.628 with caregiver burden, 0.391-0.612 with depression, 0.367-0.467 with anxiety, and -0.590 to -0.365 with quality of life).
  
  
  
  The Affiliate Stigma Scale is a promising instrument with sound psychometric properties for measuring affiliate stigma. Healthcare providers might want to use it to understand the caregivers' perspectives and to design appropriate interventions to decrease their affiliate stigma.
authors: Department of Psychiatry, Chi Mei Medical Center, Tainan, Taiwan.|Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.|Department of Senior Citizen Service Management, College of Recreation and Health Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan.
authors: Chih-Cheng
authors: CC
authors: Chang
authors: Department of Psychiatry, Chang Gung Memorial Hospital at Chiayi, Chiayi, Taiwan.|Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan.|Department of Nursing, Chang Gung Institute of Technology, Taoyuan, Taiwan.
authors: Jian-An
authors: JA
authors: Su
authors: Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong. cylin36933@gmail.com.
authors: Chung-Ying
authors: 0000-0002-2129-4242
authors: CY
authors: Lin
mesh_terms: D000328:Adult; D000368:Aged; D017028:Caregivers / Q000523:psychology*; D003704:Dementia / Q000150:complications* / Q000523:psychology*; D003863:Depression / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D025341:Principal Component Analysis; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D011788:Quality of Life / Q000523:psychology; D015203:Reproducibility of Results; D057545:Social Stigma; D011795:Surveys and Questionnaires; D013624:Taiwan
keywords: Affiliate stigma; Caregiver; Confirmatory factor analysis; Dementia; Rasch