Ward Catherine L, Flisher Alan J, Zissis Chrisostomos, Muller Martie, Lombard Carl
J Child Adolesc Ment Health. 2003 Sep;15(2):73-5. doi: 10.2989/17280580309486550.
Objective - This study aimed to assess the reliability of the Beck Depression Inventory (BDI) and the Self-Rating Anxiety Scale for epidemiological investigations of adolescents' symptoms. Method - Self-report questionnaires were administered on two occasions to 104 students in four private high schools in Cape Town, South Africa. Test-retest reliability was assessed using Cohen's kappa and observed agreement. Internal consistency of each scale was assessed using Cronbach's alpha. Resuls - All items of the BDI and all but four of the Self-Rating Anxiety Scale had at least fair Kappa scores. The remaining four items of the Self-Rating Anxiety Scale had reasonable observed agreement and reflect more transient states that are likely to change between administrations. Conclusions - The results give encouraging indication that these instruments may be reliable in developing contexts. However, the study is limited by a sample that is small and not sufficiently representative of the broader South African population. Future studies should include larger and more representative samples, in order to explore item bias in different race and gender subgroups. Validity also needs investigation.
目的——本研究旨在评估贝克抑郁量表（BDI）和自评焦虑量表在青少年症状流行病学调查中的可靠性。方法——对南非开普敦四所私立高中的104名学生进行了两次自填式问卷调查。使用科恩kappa系数和观察一致性来评估重测信度。使用克朗巴哈alpha系数评估每个量表的内部一致性。结果——BDI的所有项目以及自评焦虑量表除四项外的所有项目至少具有尚可的kappa分数。自评焦虑量表其余四项具有合理的观察一致性，反映了更易变的状态，这些状态在两次施测之间可能会发生变化。结论——结果给出了令人鼓舞的迹象，表明这些工具在发展中环境中可能是可靠的。然而，该研究受到样本量小且不足以代表更广泛的南非人群的限制。未来的研究应纳入更大且更具代表性的样本，以探讨不同种族和性别亚组中的项目偏差。效度也需要进行调查。
