University of Cambridge, UK.
University of Oxford, UK.
Assessment. 2024 Jun;31(4):794-811. doi: 10.1177/10731911231182693. Epub 2023 Jun 26.
Intolerance of uncertainty (IU) is a risk factor for poor mental health. Acquired brain injury (ABI; for example, stroke, traumatic brain injury) often brings considerable uncertainty and increased mood disorder vulnerability. The Intolerance of Uncertainty Scale-Short Form (IUS-12) is a brief, well-validated IU measure in non-ABI samples, comprising two subscales, namely, Prospective Anxiety and Inhibitory Anxiety. Here, for the first time, we investigated its reliability and validity ( = 118), and factor structure ( = 176), in ABI. Both subscales had high test-retest reliability (intraclass correlation coefficients [ICCs] of .75 and .86) and were significantly associated with mood disorder symptoms. The two-factor model was superior to a one-factor IU model fit. Some fit statistics were less than optimal (standardized root mean square residual [SRMR] = 0.06, root mean square error of approximation [RMSEA] = 0.09); hence, exploration of other factor structures in other ABI samples may be warranted. Nonetheless, the IUS-12 appears suitable in ABI.
不确定性容忍度（IU）是心理健康状况不佳的一个风险因素。获得性脑损伤（ABI；例如，中风、脑外伤）通常会带来相当大的不确定性，并增加情绪障碍的脆弱性。不确定性容忍度量表-短式（IUS-12）是一种在非 ABI 样本中经过充分验证的简短 IU 测量工具，由两个分量表组成，即预期焦虑和抑制性焦虑。在这里，我们首次研究了它在 ABI 中的可靠性和有效性（n=118），以及它的因子结构（n=176）。两个分量表的重测信度都很高（内类相关系数[ICC]分别为.75 和.86），并且与情绪障碍症状显著相关。双因素模型优于单因素 IU 模型拟合。一些拟合统计数据不太理想（标准化均方根残差[SRMR]=0.06，近似均方根误差[RMSEA]=0.09）；因此，在其他 ABI 样本中探索其他因子结构可能是必要的。尽管如此，IUS-12 在 ABI 中似乎是合适的。
