McPherson L, Lakey B
State University of New York, Binghamton.
J Pers Assess. 1993 Apr;60(2):411-7. doi: 10.1207/s15327752jpa6002_16.
We investigated whether the presence of items assessing negative cognition on the Beck Depression Inventory (BDI) inflates the relation between BDI scores and measures of negative cognition. In four student samples, we examined the relation between measures of self-esteem, dysfunctional attitudes, control beliefs, perceived social support, and BDI scores calculated with and without negative cognition items. There were significant reductions in the strength of the relations between self-esteem, dysfunctional attitudes, and BDI scores when overlapping content was removed. Moreover, this was not due to the increase in error variance resulting from reducing the number of items on the BDI. Although the magnitude decreased, the relation between negative cognition and dysphoria remained significant in all comparisons even when overlapping content was removed. Thus, although content overlap appears to inflate the relation between some measures of negative cognition and dysphoria, it cannot completely account for their relation.
我们研究了贝克抑郁量表（BDI）上评估消极认知的项目是否会夸大BDI得分与消极认知测量之间的关系。在四个学生样本中，我们考察了自尊、功能失调性态度、控制信念、感知到的社会支持等测量指标，以及分别包含和不包含消极认知项目计算得出的BDI得分之间的关系。去除重叠内容后，自尊、功能失调性态度与BDI得分之间关系的强度显著降低。此外，这并非由于减少BDI项目数量导致误差方差增加所致。尽管强度有所下降，但即使去除重叠内容，在所有比较中消极认知与烦躁不安之间的关系仍然显著。因此，尽管内容重叠似乎夸大了某些消极认知测量指标与烦躁不安之间的关系，但它并不能完全解释它们之间的关系。
