Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/29641
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    Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/29641


    Title: Rasch analysis suggested three unidimensional domains for Affiliate Stigma Scale: additional psychometric evaluation
    Authors: Chang, Chih-Cheng
    Su, Jian-An
    Tsai, Ching-Shu
    Yen, Cheng-Fang
    Liu, Jiun-Horng
    Lin, Chung-Ying
    Contributors: 老人服務事業管理系
    Keywords: Affiliate stigma
    Caregiver
    Classical test theory
    Family
    Rasch analysis
    Severe mental illness
    Date: 2015-06
    Issue Date: 2016-04-19 19:03:00 (UTC+8)
    Publisher: Elsevier Science Inc
    Abstract: Objectives: To examine the psychometrics of the Affiliate Stigma Scale using rigorous psychometric analysis: classical test theory (CTT) (traditional) and Rasch analysis (modern). Differential item functioning (DIF) items were also tested using Rasch analysis.Study Design and Setting: Caregivers of relatives with mental illness (n = 453; mean age: 53.29 +/- 13.50 years) were recruited from southern Taiwan. Each participant filled out four questionnaires: Affiliate Stigma Scale, Rosenberg Self-Esteem Scale, Beck Anxiety Inventory, and one background information sheet.Results: CTT analyses showed that the Affiliate Stigma Scale had satisfactory internal consistency (alpha = 0.85-0.94) and concurrent validity (Rosenberg Self-Esteem Scale: r = -0.52 to -0.46; Beck Anxiety Inventory: r = 0.27-0.34). Rasch analyses supported the unidimensionality of three domains in the Affiliate Stigma Scale and indicated four DIF items (affect domain: 1; cognitive domain: 3) across gender.Conclusion: Our findings, based on rigorous statistical analysis, verified the psychometrics of the Affiliate Stigma Scale and reported its DIF items. We conclude that the three domains of the Affiliate Stigma Scale can be separately used and are suitable for measuring the affiliate stigma of caregivers of relatives with mental illness. (C) 2015 Elsevier Inc. All rights reserved.
    Relation: Journal of Clinical Epidemiology, v.68 n.6, pp.674-683
    Appears in Collections:[Dept. of Senior Service and Health Management] Periodical Articles

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