Differential item functioning in the Cambridge Mental Disorders in the Elderly (CAMDEX) Depression Scale across middle age and late life.
Differential item functioning in the Cambridge Mental Disorders in the Elderly (CAMDEX) Depression Scale across middle age and late life.
复制标题
在中年和后期，老年人（CAMDEX）抑郁量表的剑桥精神障碍中的差异项目功能。
DOI：
10.1037/pas0000114
复制
发表时间：
2015-12
影响因子：
3.6
通讯作者：
McGue M
中科院分区：
文献类型：
--
作者：
Estabrook R;Sadler ME;McGue M
在衰老与抑郁的研究中，一个长期存在的关键问题是不同年龄组测量的可比性。虽然抑郁症的心理测量通常显示，随着年龄的增长，症状的发生率增加，但抑郁症的诊断率却没有显示出同样的年龄趋势。本分析采用因子分析衍生的情感和躯体亚量表，对CAMDEX访谈表抑郁部分的差异项目功能进行了测试。情感子量表的结果显示，大多数情感项目的项目功能随年龄的变化存在显著差异（项目“幸福生活”，“孤独”，“紧张”，“无用”和“未来”：=[30.193,255.971]跨项目，均p< 0.0001）。对躯体分量表的分析显示，差异项目功能仅限于与应对有关的单个项目（= 180.754,p< 0.0001）。这些结果表明，不同年龄组的抑郁症状的差异并不完全符合单一的抑郁特征，抑郁的测量结构随着寿命的变化而变化。
A long-standing and critical problem in the study of aging and depression is the comparability of measurement across age groups. While psychological measures of depression typically show increased incidence of symptoms with increasing age, rates of depression diagnosis do not show the same age trend. This analysis presents tests of differential item functioning on the depression section of the CAMDEX interview schedule, using factor analysis-derived affective and somatic subscales. Results for the affective subscale show significant differences in item functioning in the majority of the affective items as a function of age (Items “Happy Life”, “Lonely”, “Nervous” “Worthless” and “Future”: = [30.193, 255.971] across items, all p<.0001). Analyses for the somatic subscale show differential item functioning is limited to a single item relating to coping ( = 180.754, p<.0001). These results indicate that differences in depression symptoms across age groups are not entirely consistent with a unidimensional depression trait, and that the measurement structure of depression varies over the lifespan.