Seeking certainty about Intolerance of Uncertainty: Addressing old and new issues through the Intolerance of Uncertainty Scale-Revised
Seeking certainty about Intolerance of Uncertainty: Addressing old and new issues through the Intolerance of Uncertainty Scale-Revised
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DOI：
10.1371/journal.pone.0211929
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发表时间：
2019-02-11
期刊：
影响因子：
3.7
通讯作者：
Ghisi, Marta
中科院分区：
文献类型：
--
作者：
Bottesi, Gioia;Noventa, Stefano;Ghisi, Marta
对不确定性的不容忍是一个跨诊断过程，跨越了一系列情绪障碍，通常通过对不确定性的不容忍量表-12来测量。本研究旨在通过意大利不确定性不耐受量表（修订版）（一种改编自不确定性不耐受量表-12的测量方法，用于评估整个生命周期的不确定性不耐受（IU））评估中的一些问题。特别是，我们解决了一个大的社区样本之间的因素结构，跨性别，年龄和随时间的测量不变性，连同整体规模及其分量表的可靠性和有效性。该问卷对社区（N = 761;平均年龄= 35.86 +/- 14.01岁）和本科生（N = 163;平均年龄= 21.16 +/- 2.64岁）参与者进行了管理，以及其他评估理论上与IU相关的结构的自我报告措施。双因素模型的应用表明，意大利不容忍的不确定性量表修订版具有强大的一般因素，从而支持使用单位加权的问卷总分作为衡量的结构。此外，跨性别，年龄和随时间的测量不变性的支持。最后，意大利不容忍的不确定性量表修订版似乎具有足够的信度和效度。这些发现支持了测量的单维性，这是一个概念上合理的结果，符合不确定性的跨诊断性质。此外，本研究和出版的因素结构的不容忍的不确定性量表-12和修订的不容忍的不确定性量表的比较，确定了一些问题的内部结构的措施。特别是，对前瞻性IU子量表表示担忧。鉴于有前途的心理测量特性，鼓励在研究和临床实践中使用意大利不容忍不确定性量表修订版作为一个明确的措施。
Intolerance of Uncertainty is a trans-diagnostic process that spans a range of emotional disorders and it is usually measured through the Intolerance of Uncertainty Scale-12. The current study aims at investigating some issues in the assessment of Intolerance of Uncertainty (IU) through the Italian Intolerance of Uncertainty Scale-Revised, a measure adapted from the Intolerance of Uncertainty Scale-12 to assess IU across the lifespan. In particular we address the factor structure among a large community sample, measurement invariance across gender, age, and over time, together with reliability and validity of the overall scale and its subscales. The questionnaire was administered to community (N = 761; mean age = 35.86 +/- 14.01 years) and undergraduate (N = 163; mean age = 21.16 +/- 2.64 years) participants, together with other self-report measures assessing constructs theoretically related to IU. The application of a bifactor model shows that the Italian Intolerance of Uncertainty Scale-Revised possesses a robust general factor, thus supporting the use of the unit-weighted total score of the questionnaire as a measure of the construct. Furthermore, measurement invariance across gender, age, and over time is supported. Finally, the Italian Intolerance of Uncertainty Scale-Revised appears to possess adequate reliability and validity. These findings support the unidimensionality of the measure, a conceptually reasonable result in line with the trans-diagnostic nature of Intolerance of Uncertainty. In addition, this study and comparison with published factor structures of the Intolerance of Uncertainty Scale-12 and of the Intolerance of Uncertainty Scale-Revised identify some issues for the internal structure of the measure. In particular, concern is expressed for the Prospective IU subscale. In light of the promising psychometric properties, the use of the Italian Intolerance of Uncertainty Scale-Revised as a univocal measure is encouraged in both research and clinical practice.