Assessing genetic influences on behavior: informant and context dependency as illustrated by the analysis of attention problems. Kan, K., van Beijsterveldt, C. E M, Bartels, M., & Boomsma, D. I Behavior genetics, 44(4):326–36, July, 2014. ![Assessing genetic influences on behavior: informant and context dependency as illustrated by the analysis of attention problems. [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Assessment of genetic influences on behavior depends on context, informants, and study design: We show (analytically) that, conditional on study design, informant specific genetic variance is included in the genetic variance component or in the environmental variance component. To aid the explanation, we present an illustrative empirical analysis of data from the Netherlands Twin Register. Subjects included 1,571 monozygotic and 2,672 dizygotic 12-year-old twin pairs whose attention problems (AP) were rated by their parents, teachers, and themselves. Heritability estimates (h(2)) of AP were about ~0.75 for same informant ratings (mother, father, and same teacher ratings) and ~0.54 for different informants' ratings (different parents', different teachers', and two twins' self-ratings). Awareness of assessment effects is relevant to research into psychiatric disorders. Differences in assessment can account for age effects, such as a drop in heritability of ADHD symptoms. In genome-wide association studies, effects of rating specific genetic influences will be undetectable.
@article{kan_assessing_2014,
title = {Assessing genetic influences on behavior: informant and context dependency as illustrated by the analysis of attention problems.},
volume = {44},
issn = {1573-3297},
url = {http://www.ncbi.nlm.nih.gov/pubmed/24797406},
doi = {10.1007/s10519-014-9657-7},
abstract = {Assessment of genetic influences on behavior depends on context, informants, and study design: We show (analytically) that, conditional on study design, informant specific genetic variance is included in the genetic variance component or in the environmental variance component. To aid the explanation, we present an illustrative empirical analysis of data from the Netherlands Twin Register. Subjects included 1,571 monozygotic and 2,672 dizygotic 12-year-old twin pairs whose attention problems (AP) were rated by their parents, teachers, and themselves. Heritability estimates (h(2)) of AP were about {\textasciitilde}0.75 for same informant ratings (mother, father, and same teacher ratings) and {\textasciitilde}0.54 for different informants' ratings (different parents', different teachers', and two twins' self-ratings). Awareness of assessment effects is relevant to research into psychiatric disorders. Differences in assessment can account for age effects, such as a drop in heritability of ADHD symptoms. In genome-wide association studies, effects of rating specific genetic influences will be undetectable.},
number = {4},
urldate = {2015-07-21},
journal = {Behavior genetics},
author = {Kan, Kees-Jan and van Beijsterveldt, Catharina E M and Bartels, Meike and Boomsma, Dorret I},
month = jul,
year = {2014},
pmid = {24797406},
keywords = {Attention Deficit Disorder with Hyperactivity, Attention Deficit Disorder with Hyperactivity: epi, Attention Deficit Disorder with Hyperactivity: gen, Child, Diseases in Twins, Diseases in Twins: genetics, Faculty, Female, Genome-Wide Association Study, Humans, Male, Netherlands, Parents, Reproducibility of Results, Research Design, Twins, Dizygotic, Twins, Dizygotic: genetics, Twins, Monozygotic, Twins, Monozygotic: genetics},
pages = {326--36},
}
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Subjects included 1,571 monozygotic and 2,672 dizygotic 12-year-old twin pairs whose attention problems (AP) were rated by their parents, teachers, and themselves. Heritability estimates (h(2)) of AP were about ~0.75 for same informant ratings (mother, father, and same teacher ratings) and ~0.54 for different informants' ratings (different parents', different teachers', and two twins' self-ratings). Awareness of assessment effects is relevant to research into psychiatric disorders. Differences in assessment can account for age effects, such as a drop in heritability of ADHD symptoms. 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