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Validity and reliability of Chinese version of Adult Carer Quality of Life questionnaire (AC-QoL) in family caregivers of stroke survivors

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  • Yongxia Mei
  • Beilei Lin
  • Yingshuang Li
  • Chunge Ding
  • Zhenxiang Zhang

Abstract

The Adult Carer Quality of Life questionnaire (AC-QoL) is a reliable and valid instrument used to assess the quality of life (QoL) of adult family caregivers. We explored the psychometric properties and tested the reliability and validity of a Chinese version of the AC-QoL with reliability and validity testing in 409 Chinese stroke caregivers. We used item-total correlation and extreme group comparison to do item analysis. To evaluate its reliability, we used a test-retest reliability approach, intraclass correlation coefficient (ICC), together with Cronbach’s alpha and model-based internal consistency index; to evaluate its validity, we used scale content validity, confirmatory factor analysis (CFA) and exploratory factor analysis (EFA) via principal component analysis with varimax rotation. We found that the CFA did not in fact confirm the original factor model and our EFA yielded a 31-item measure with a five-factor model. In conclusions, although some items performed differently in our analysis of the original English language version and our Chinese language version, our translated AC-QoL is a reliable and valid tool which can be used to assess the quality of life of stroke caregivers in mainland China. Chinese version AC-QoL is a comprehensive and good measurement to understand caregivers and has the potential to be a screening tool to assess QoL of caregiver.

Suggested Citation

  • Yongxia Mei & Beilei Lin & Yingshuang Li & Chunge Ding & Zhenxiang Zhang, 2017. "Validity and reliability of Chinese version of Adult Carer Quality of Life questionnaire (AC-QoL) in family caregivers of stroke survivors," PLOS ONE, Public Library of Science, vol. 12(11), pages 1-14, November.
    • Handle: RePEc:plo:pone00:0186680
    DOI: 10.1371/journal.pone.0186680
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    References listed on IDEAS

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    2. Peter Bentler, 2009. "Alpha, Dimension-Free, and Model-Based Internal Consistency Reliability," Psychometrika, Springer;The Psychometric Society, vol. 74(1), pages 137-143, March.
    3. Jiaobo Duan & Jufang Fu & Hongjie Gao & Changsheng Chen & Jianfang Fu & Xin Shi & Xufeng Liu, 2015. "Factor Analysis of the Caregiver Quality of Life Index-Cancer (CQOLC) Scale for Chinese Cancer Caregivers: A Preliminary Reliability and Validity Study of the CQOLC-Chinese Version," PLOS ONE, Public Library of Science, vol. 10(2), pages 1-12, February.
    4. Yanhong Han & Yilan Liu & Xuelin Zhang & Wilson Tam & Jing Mao & Violeta Lopez, 2017. "Chinese family caregivers of stroke survivors: Determinants of caregiving burden within the first six months," Journal of Clinical Nursing, John Wiley & Sons, vol. 26(23-24), pages 4558-4566, December.
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    1. Yeonsoo Jang & Sang Hoon Ahn & Kyunghwa Lee & Jiyeon Lee & Jeong Hyun Kim, 2019. "Psychometric evaluation of the Korean version of the Hepatitis B Quality of Life Questionnaire," PLOS ONE, Public Library of Science, vol. 14(2), pages 1-10, February.

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