Rumination and worry are common forms of perseverative cognition in children. Research has started to target perseverative cognitions in the everyday life of children, however, valid measurement instruments reliably capturing rumination and worry in children's daily life are still missing. We conducted two ambulatory assessment studies validating short scales suitable for the measurement of rumination and worry in children's daily life. Results of the first study (N = 110, 8-11 year-olds, 31 days, up to 4 daily measurements) supported a unidimensional structure of the rumination scale. Rumination was associated with negative affect (but not positive affect) on the within- and on the between-person level. On the between-person level, children who ruminated more showed poorer working memory performance. In the second study (N = 84, 8-10 year-olds, 21 days, up to 3 daily measurements), findings of Study 1 were largely replicated. Moreover, we established a unidimensional worry scale in Study 2 reliably capturing worry in children's daily life. Importantly, Study 2 showed that worry and rumination share common variance but can be differentiated in children. On the within-person level, higher levels of worry were associated with higher levels of negative affect and lower levels of positive affect. On the between-person level, worry was associated with higher levels of negative affect and lower working memory performance. Altogether, findings of both studies demonstrated that the short scales had excellent psychometric properties suggesting that they are helpful tools for the assessment of rumination and worry in children's daily life.person level, worry was associated with higher levels of negative affect and lower working memory performance. Altogether, findings of both studies demonstrated that the short scales had excellent psychometric properties suggesting that they are helpful tools for the assessment of rumination and worry in children's daily life (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译：

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反刍和担忧的动态评估：捕捉儿童日常生活中的持续认知。

反刍和担心是儿童顽固性认知的常见形式。研究已经开始针对儿童日常生活中的顽固性认知，但是，仍然缺乏可靠地捕捉儿童日常生活中的沉思和担忧的有效测量工具。我们进行了两项动态评估研究，验证了适合测量儿童日常生活中的反刍和担忧的短量表。第一项研究的结果（N = 110，8-11 岁，31 天，每天最多 4 次测量）支持反刍量表的单维结构。反刍与人内和人际层面的负面影响（但不是正面影响）相关。在人际层面上，反刍越多的孩子工作记忆表现越差。在第二项研究中（N = 84，8-10 岁儿童，21 天，每天最多 3 次测量），研究 1 的结果在很大程度上得到了复制。此外，我们在研究 2 中建立了一个单维度的担忧量表，可靠地捕捉了儿童日常生活中的担忧。重要的是，研究 2 表明担心和沉思具有共同的差异，但可以在儿童中区分。在个人层面上，较高水平的担忧与较高水平的负面影响和较低水平的积极影响相关。在人与人之间，担忧与较高水平的负面影响和较低的工作记忆表现有关。总之，这两项研究的结果表明，短量表具有出色的心理测量特性，表明它们是评估儿童日常生活中的沉思和担忧的有用工具。担心与较高水平的负面影响和较低的工作记忆表现有关。总之，这两项研究的结果表明，短量表具有出色的心理测量特性，表明它们是评估儿童日常生活中的沉思和担忧的有用工具（PsycInfo Database Record (c) 2021 APA，保留所有权利）。