Callous-unemotional (CU) traits have been measured in a variety of sample-types (e.g., community or forensic) and from the perspective of different informants (e.g., self-report or parent-report) using the inventory of callous-unemotional traits total score (ICU-T). Although the positive association between CU traits and antisocial behavior is uncontroversial, the degree to which sample-types are different from each other has received little attention despite such knowledge being important for generalization and interpretation of research findings. To address this gap in the literature, we estimated the implied distribution of the ICU-T across sample-types, informants, and their interaction using meta-analytic models of sample means and variances. In unconditional models, we found that sample-type significantly moderated mean ICU-T scores but not variance, while informant significantly moderated the variance of ICU-T scores but not means. There was also a significant interaction between sample-type and informant. Mean parent-reported ICU-T scores were significantly lower than self-reported scores in community samples, but not significantly different in samples with elevated levels of antisocial behavior. Implications of our findings include improved research efficiency, the need for different ICU-T norms across informants, and greater understanding of informant biases.

中文翻译：

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对不同抽样方法和知情人的冷酷无情特征的隐含分布进行荟萃分析

冷酷无情 (CU) 特征已在各种样本类型（例如社区或法医）中进行了测量，并且从不同信息提供者的角度（例如自我报告或家长报告）使用冷酷无情特征清单进行了测量总分（ICU-T）。尽管 CU 特征与反社会行为之间的正相关性没有争议，但样本类型之间的差异程度却很少受到关注，尽管这些知识对于研究结果的概括和解释很重要。为了解决文献中的这一差距，我们使用样本均值和方差的荟萃分析模型估计了 ICU-T 在样本类型、知情者及其相互作用中的隐含分布。在无条件模型中，我们发现样本类型显着调节了平均 ICU-T 分数，但没有调节方差，而知情者显着调节了 ICU-T 分数的方差，但没有调节均值。样本类型和信息提供者之间也存在显着的相互作用。在社区样本中，家长报告的 ICU-T 平均分数显着低于自我报告的分数，但在反社会行为水平升高的样本中没有显着差异。我们的研究结果的意义包括提高研究效率、需要不同的信息提供者采用不同的 ICU-T 规范，以及更好地理解信息提供者的偏见。