Intolerance of uncertainty (IU) is the trait propensity to react negatively to uncertainty. To date, very few studies have explored early childhood predictors of IU. The current study identifies relations between child temperament assessed at age 3 (N = 559) and IU assessed at ages 12 (N = 432) and 15 (N = 415). Temperament was assessed through both laboratory observation (Laboratory Temperament Assessment Battery) and maternal report (Children’s Behavior Questionnaire). IU was assessed through both maternal rating and child self-report using the 12-item Intolerance of Uncertainty Scale for Children. Higher levels of temperamental negative emotionality/neuroticism and lower levels of temperamental positive emotionality/extraversion assessed at age 3 predicted higher levels of IU in early-mid adolescence. Unique relationships were found at the trait facet level, and differences were observed between informants. These findings suggest that certain early child temperament traits can serve as markers of risk for difficulty dealing with uncertainty later in life. Future research should explore whether this relationship translates to increased risk for psychopathology.

不确定性的不宽容（IU）是对不确定性做出负面反应的特质倾向。迄今为止，很少有研究探索IU的儿童早期预测因素。当前的研究确定了在3岁（N = 559）评估的儿童气质与在12岁（N = 432）和15岁（N = 415）评估的IU之间的关系。通过实验室观察（实验室气质评估组）和母体报告（儿童行为问卷）对气质进行评估。使用孕产妇不确定性量表的12个项目，通过产妇等级和儿童自我报告对IU进行评估。在3岁时评估的较高的气质消极情绪/神经质和较低的气质积极情绪/外向性水平预测青少年中早期IU水平较高。在性状方面方面发现了独特的关系，并且在线人之间观察到差异。这些发现表明，某些早期儿童的气质特征可以作为生活中应对不确定性的困难风险的标志。未来的研究应探讨这种关系是否会导致精神病理学风险增加。