Genetic influences on thought problems in 7-year-olds: a twin-study of genetic, environmental and rater effects.

@article{Abdellaoui2008GeneticIO,
  title={Genetic influences on thought problems in 7-year-olds: a twin-study of genetic, environmental and rater effects.},
  author={Abdel Abdellaoui and Meike Bartels and James J. Hudziak and Patrizia Rizzu and Toos C. E. M. van Beijsterveldt and Dorret I. Boomsma},
  journal={Twin research and human genetics : the official journal of the International Society for Twin Studies},
  year={2008},
  volume={11 6},
  pages={571-8}
}
The Thought-Problem scale (TP) of the CBCL assesses symptoms such as hallucinations and strange thoughts/behaviors and has been associated with other behavioral disorders. This study uses parental reports to examine the etiology of variation in TP, about which relatively little is known, in 7-year-old twins. Parental ratings on TP were collected in 8,962 7-year-old twin pairs. Because the distribution of TP scores was highly skewed scores were categorized into 3 classes. The data were analyzed… CONTINUE READING
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