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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/111935

    Title: Test–Retest Reliability and Minimal Detectable Change of the D2 Test of Attention in Patients with Schizophrenia
    Authors: Lee, Posen;Lee, Posen;Lu, Wen-Shian;Lu, Wen-Shian;Chin-Hsuan, L;Liu, Chin-Hsuan;林鋐宇;Lin, Hung-Yu;Hs, Ching-Lin;Hsieh, Ching-Lin
    Contributors: 職能治療學系
    Date: 2018-11
    Issue Date: 2019-09-02 15:11:25 (UTC+8)
    Abstract: Objective
    The d2 Test of Attention (D2) is a commonly used measure of selective attention for patients with schizophrenia. However, its test–retest reliability and minimal detectable change (MDC) are unknown in patients with schizophrenia, limiting its utility in both clinical and research settings. The aim of the present study was to examine the test–retest reliability and MDC of the D2 in patients with schizophrenia.

    A rater administered the D2 on 108 patients with schizophrenia twice at a 1-month interval. Test–retest reliability was determined through the calculation of the intra-class correlation coefficient (ICC). We also carried out Bland–Altman analysis, which included a scatter plot of the differences between test and retest against their mean. Systematic biases were evaluated by use of a paired t-test.

    The ICCs for the D2 ranged from 0.78 to 0.94. The MDCs (MDC%) of the seven subscores were 102.3 (29.7), 19.4 (85.0), 7.2 (94.6), 21.0 (69.0), 104.0 (33.1), 105.0 (35.8), and 7.8 (47.8), which represented limited-to-acceptable random measurement error. Trends in the Bland–Altman plots of the omissions (E1), commissions (E2), and errors (E) were noted, presenting that the data had heteroscedasticity.

    According to the results, the D2 had good test–retest reliability, especially in the scores of TN, TN-E, and CP. For the further research, finding a way to improve the administration procedure to reduce random measurement error would be important for the E1, E2, E, and FR subscores.
    Appears in Collections:[職能治療學系] 期刊論文

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