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來源資料
頁籤選單縮合
題名 | 中文版暴食問卷之信度和效度=Reliability and Validity of Chinese Version of the Bulimic Investigatory Test |
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作者 | 曾美智; 李明濱; 李宇宙; | 書刊名 | 臺灣精神醫學 |
卷期 | 11:2 1997.06[民86.06] |
頁次 | 頁39-53 |
分類號 | 415.9982 |
關鍵詞 | 暴食症; 暴食問卷; 信度; 效度; Bulimic investigatory test; Edinburgh; BITE; Bulimia nervosa; Reliability; Validity; |
語文 | 中文(Chinese) |
中文摘要 | 目的:為建立中文版暴食問卷,並評估其信度,求取最佳篩選分割點,以及評估此分割點的診斷效度。方法:作者等人將Bulimic Investigatory Test, Edinburgh (BITE)翻譯和修改,將其譯名為暴食問卷,並進行信度和效度測試。本自填問卷包含29大題(36項題目),分為兩個分量表:(1) 症狀分量表,滿分為30分;和(2)嚴重度分量表,滿分為39分。研究分三組樣本進行,第一組對象包括20位DSM-IV暴食症的診斷組和80位正常控制組。診斷是依據DSM-IV,以半結構方式進行面談。門診暴食症的病人初診時,就給予填寫暴食問卷。以100位的資料進行內部一致性信度分析。第二組是63位護理系學生,相隔兩週的時間,再填寫暴食問卷,進行再測信度研究。第三組對象是 128位減重班肥胖症病人;在精神科照會醫師不知得分的情形下,進行診斷評估,進行交叉效度考驗。結果:暴食問卷的內在一致性信度和再測信度均良好;以26、27或28分為分割點,敏感度和特異度均等於1。暴食問卷使用於肥胖症病人時,其交叉效度考驗亦得到滿意的結果,但最佳分割點則提高至29分或30分,其敏感度為1,特異度為0.98。根據DSM-IV的診斷條例和問卷分析的結果,建議刪除減重方法中減肥藥和利尿劑兩項,和修改第15題(對體重認知)。結論:暴食問卷適用於暴食症篩選和症狀嚴重度之評估。 |
英文摘要 | Objective: The aim of this study was to evaluate the reliability, criterion validity, and diagnostic validity of the Chinese version of the Bulimic Investigatory Test, Edinburgh (BITE). Methods: The authors translated BITE into Chinese, with Dr. Freeman's permission. The contents of the scale were finalized by consensus of three senior psychiatrists. These studies were conducted on different groups of subjects. The subjects of the first study were 20 first-visit bulimic patients and 80 healthy control subjects. Bulimic patients were diagnosed according to the DSM-IV criteria through a semi-structured interview. The subjects of the second study were 63 nursing students. They completed the BITE on two occasions, separated by 2 weeks, for test-retest reliability assessment. Cross-validation was performed on the subjects of the third study, which consisted of 128 obese patients attending the hospital-based weight reduction program. Consultation psychiatrists conducted blind interviews of the obese patients according to DSM-IV criteria. Results: The two items(diet pills and diuretics) of the weight reduction methods showed a poor ability to discriminate between bulimic and control subjects. Sympton subscale and severity subscale showed high internal consistency. Cronbach's α value was 0.95 and 0.77 in two subscales respectively. Test-retest reliability was also high. Intra-class correlation reliability (ICCR) was 0.86 for symptom subscale and 0.88 for severity subscale. Sensitivity, specificity, as well as positive predictive value were all equal to 1 when cut-off point was set at 26, 27 or 28. The results of the cross-validation study showed the Chinese version of BITE was also a valid predictor of bulimia nervosa in obese patients. However, the optimal cut-off point increased to 29 or 30 in obese patients. Conclusion: The Chinese version of the BITE showed a high degree of internal consistency, and good test-retest reliability. Sensitivity and specificity were all equal to 1 when the cut-off point was set between 26 and 28. BITE is a reliable and valid tool with which to identify cases of bulimia in outpatients and obese patients. |
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