The Inventory of Callous-Unemotional Traits (ICU) in Children: Reliability and Heritability

被引：0
作者：
Ashlee A. Moore
Dever Carney
Elizabeth Moroney
Laura Machlin
Kenneth E. Towbin
Melissa A. Brotman
Daniel S. Pine
Ellen Leibenluft
Roxann Roberson-Nay
John M. Hettema
机构：
[1] Virginia Commonwealth University,Virginia Institute for Psychiatric and Behavioral Genetics
[2] Virginia Commonwealth University,Center for Clinical and Translational Research
[3] Virginia Commonwealth University,Department of Psychiatry
[4] National Institutes of Health,Department of Health and Human Services, Emotion and Development Branch, National Institute of Mental Health
来源：
Behavior Genetics | 2017年 / 47卷
关键词：
Callous-unemotional traits; Heritability; Reliability; Measurement model; Twins;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Callous-unemotional (CU) traits comprise the core symptoms of psychopathy, yet no study has estimated the heritability of CU traits in a community sample of children using an instrument designed solely to assess CU traits. The current study uses data from 339 twin pairs aged 9–14 to examine the reliability and heritability of the parent-report Inventory of Callous-unemotional Traits (ICU) at two assessments approximately 3 weeks apart. Time-specific measurement error was taken into account to obtain a more accurate estimate of the heritability reflecting the latent liability to CU traits. Test–retest reliability was 0.84 and heritability at visit 1 was 39%. The heritability of the latent liability to CU traits was 47%. This latent liability contributed 79% of the variance in ICU score at visit 1 and visit 2. This is the first study to account for measurement error while examining the heritability of CU traits, furthering our understanding of psychopathy in children.
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页码：141 / 151
页数：10
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