University of Tasmania, Tasmania, Australia.
J Atten Disord. 2012 May;16(4):276-83. doi: 10.1177/1087054710383378. Epub 2010 Sep 28.
Generalized partial credit model, which is based on item response theory (IRT), was used to test differential item functioning (DIF) for the Diagnostic and Statistical Manual of Mental Disorders (4th ed.), inattention (IA), and hyperactivity/impulsivity (HI) symptoms across boys and girls.
To accomplish this, parents completed an ADHD rating scale for 403 boys and 380 girls, between 6 and 11 years of age.
The findings indicated no DIF for all the slope parameters for both the IA and HI symptoms. For location parameters, there was no DIF for all the IA symptoms and for seven of the nine HI symptoms. However, the effect sizes for the DIF symptoms were small. Thus, there was good support for gender equivalency for the ADHD symptoms.
These findings extend existing data on gender equivalency of ADHD symptoms, obtained using other methodologies for testing measurement equivalency.
基于项目反应理论（IRT）的广义部分信用模型被用于测试《精神障碍诊断与统计手册》（第 4 版）中多动障碍的注意力不集中（IA）和多动/冲动（HI）症状在男孩和女孩中的差异项目功能（DIF）。
为此，父母为 403 名男孩和 380 名女孩完成了注意力缺陷多动障碍评定量表，年龄在 6 至 11 岁之间。
研究结果表明，IA 和 HI 症状的所有斜率参数均无 DIF。对于位置参数，IA 症状的所有 DIF 以及 HI 症状中的九个中的七个均无 DIF。然而，DIF 症状的效应大小很小。因此，ADHD 症状的性别等效性得到了很好的支持。
这些发现扩展了使用其他方法测试测量等效性获得的关于 ADHD 症状性别等效性的现有数据。
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