Validation of the Chinese version of the Schizophrenia Quality of Life Scale Revision 4 (SQLS-R4) in Taiwanese patients with schizophrenia |
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Authors: | Po-Ju Kuo Mei-Jin Chen-Sea Ru-Band Lu Ming-Shun Chung Chien-Cheng Kuo Wei-Che Huang Hui-Ing Ma |
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Institution: | (1) Department of Occupational Therapy, Jianan Mental Hospital, Tainan County, Taiwan;(2) Department of Occupational Therapy & Institute of Allied Health Sciences, Medical College, National Cheng Kung University, 1 Ta-Hsueh Road, Tainan, 701, Taiwan;(3) Institute of Behavioral Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan;(4) Department of Community Psychiatry, Jianan Mental Hospital, Tainan County, Taiwan;(5) Department of General Psychiatry, Jianan Mental Hospital, Tainan County, Taiwan;(6) Department of Psychiatry, Sin Lau Hospital, Tainan, Taiwan |
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Abstract: | We tested the reliability, sensitivity, and validity of a Chinese translation of the Schizophrenia Quality of Life Scale Revision
4 (SQLS-R4). One hundred Taiwanese individuals with schizophrenia were recruited. The internal consistency reliability was
satisfactory for both the psychosocial and vitality domains (Cronbach’s α = 0.92, 0.84). The test–retest reliability was also
high (psychosocial: ICC = 0.84, vitality: ICC = 0.84) for those individuals whose psychological conditions remained stable
between the two-week interval. However, the responsiveness coefficient for those with considerable changes in psychological
conditions ranged from very small to moderate, suggesting either low responsiveness for the vitality domain or a complex relationship
between the change of psychological conditions and quality of life, and the need to estimate responsiveness more conclusively
in a future intervention study. The convergent validity was supported by moderate-to-large correlations between domains measuring
related constructs of the SQLS-R4 and SF-36 (r = −0.65 to −0.67). Overall, the results of this study provide preliminary evidence for the reliability and validity of the
SQLS-R4 used in Taiwanese individuals with schizophrenia. This study provides a common ground for international researchers
to understand quality of life in Taiwanese patients with schizophrenia. |
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Keywords: | Quality of life Reliability Schizophrenia Validity |
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