Differential functioning of the Beck Depression Inventory in late-life patients: Use of item response theory
Differential functioning of the Beck Depression Inventory in late-life patients: Use of item response theory
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DOI：
10.1037//0882-7974.17.3.379
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发表时间：
2002-09-01
影响因子：
3.7
通讯作者：
Reynolds, CF
中科院分区：
文献类型：
--
作者：
Kim, Y;Pilkonis, PA;Reynolds, CF
本研究分析了老年抑郁症患者与中年抑郁症患者对修订后的贝克抑郁量表（BDI）项目反应的年龄相关测量偏倚。项目反应理论（IRT）模型被用来等同的规模和。区分真组差异和2个样本测量偏差。基线BDI数据（218例晚期和613例中年）用于本分析。IRT结果表明，老年患者倾向于报告较少的认知症状，特别是在低至平均水平的抑郁症。相反，他们倾向于报告更多的躯体症状，特别是在抑郁程度较高的情况下。调整后的截止分数在晚年组，并讨论了可能的原因与年龄相关的差异的表现的BDI。
The present analyses examined age-related measurement bias in responses to items on the revised Beck Depression Inventory (BDI) in depressed late-life patients versus midlife patients. Item response theory (IRT) models were used to equate the scale and to. differentiate true-group differences, from bias in measurement in the 2 samples. Baseline BDI data (218 late life and 613 midlife) were used for the present analysis. IRT results indicated that late-life patients tended to report fewer cognitive symptoms, especially at low to average levels of depression. Conversely, they tended to report more somatic symptoms, especially at higher levels of depression. Adjusted cutoff scores in the late-life group are provided, and possible reasons for age-related differences in the performance of the BDI are discussed.