Resolving Uncertainty About the Intolerance of Uncertainty Scale-12: Application of Modern Psychometric Strategies
Resolving Uncertainty About the Intolerance of Uncertainty Scale-12: Application of Modern Psychometric Strategies
复制标题
DOI：
10.1080/00223891.2015.1070355
复制
发表时间：
2016-03-03
影响因子：
3.4
通讯作者：
Osman, Augustine
中科院分区：
文献类型：
--
作者：
Hale, Willie;Richmond, Miranda;Osman, Augustine
在本研究中，我们评估的因素结构，信度估计，项目参数，和微分相关的不确定性量表（Carleton，Norton，& Asmundson，2007）的短形式的大学生女性（n = 387）和男性（n = 276）的样本，年龄从18岁到49岁（M = 20.20，SD = 3.91）。该工具旨在测量不确定性不耐受的两个方面：前瞻性焦虑和抑制性焦虑，尽管经常使用测量总分。本研究的一个主要目的是确定在何种程度上的总与分量表分数的推导是经验允许的。双因素模型与单因素模型和双因素相关性状模型的比较表明，双因素模型对样本数据的拟合具有上级优势。该模型提供了一个强大的一般不容忍的不确定性因素的证据，更可靠，占显着更常见的方差比任何子尺度因素。项目反应理论斜率参数的检查显示，在跨性别的措施的项目可以忽略不计的偏见。最后，进行了一系列的同步回归分析，以检查该措施的总量表得分为男性和女性的差异相关。
In this study, we evaluated the factor structure, reliability estimates, item parameters, and differential correlates of the short form of the Intolerance of Uncertainty Scale (Carleton, Norton, & Asmundson, 2007) in samples of undergraduate women (n = 387) and men (n = 276) ranging in age from 18 to 49years (M = 20.20, SD = 3.91). This instrument was designed to measure 2 facets of intolerance of uncertaintyprospective anxiety and inhibitory anxietyalthough total scores on the measure are often used. A major objective of this study was to determine the degree to which derivation of total versus subscale scores is empirically permissible. Comparison of a bifactor model to a unidimensional model and a 2-factor correlated traits model indicated that the bifactor model exhibited superior fit to the sample data. This model provided evidence of a strong general intolerance of uncertainty factor that was more reliable and accounted for significantly more common variance than either subscale factor. Examination of the item response theory slope parameters revealed negligible bias in the measure's items across genders. Finally, a series of simultaneous regression analyses was conducted to examine differential correlates of the measure's total scale scores for men and women.