A Taxonomy of Effect Size Measures for the Differential Functioning of Items and Scales
A Taxonomy of Effect Size Measures for the Differential Functioning of Items and Scales
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DOI：
10.1037/a0018966
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发表时间：
2010-07-01
影响因子：
9.9
通讯作者：
Meade, Adam W.
中科院分区：
文献类型：
--
作者：
Meade, Adam W.
过去 20 年来，在识别测量不变性或缺乏测量不变性的方法方面取得了很大进展。到目前为止，这些工作的重点一直是为样本中功能不同的项目和量表建立统计显着性标准。与所有显着性检验一样，与差异功能检验相关的功效受到样本大小和其他考虑因素的影响。此外，统计显着性并不一定意味着实际重要性。因此，迫切需要有意义的效应量指标来描述项目和量表功能不同的程度。最近开发的效应大小测量方法有望提供一种衡量标准来描述群体之间存在的差异功能量。本文扩展了最近的发展，提出了潜在的差异功能效应大小的分类；提出了几个新的项目和规模差异功能效应大小指数，并用 2 个数据样本进行说明。描述了为计算这些指数并绘制项目级和规模级差异功能而创建的软件。
Much progress has been made in the past 2 decades with respect to methods of identifying measurement invariance or a lack thereof. Until now, the focus of these efforts has been to establish criteria for statistical significance in items and scales that function differently across samples. The power associated with tests of differential functioning, as with all significance tests, is affected by sample size and other considerations. Additionally, statistical significance need not imply practical importance. There is a strong need as such for meaningful effect size indicators to describe the extent to which items and scales function differently. Recently developed effect size measures show promise for providing a metric to describe the amount of differential functioning present between groups. Expanding upon recent developments, this article presents a taxonomy of potential differential functioning effect sizes; several new indices of item and scale differential functioning effect size are proposed and illustrated with 2 data samples. Software created for computing these indices and graphing item- and scale-level differential functioning is described.