A model for comparative ratings in studies of within-family differences.
Comparative ratings between pairs of siblings or other relatives are commonly used to refine measures of intrafamily variation. A simple model, based on signal detection theory, is proposed which shows how comparative ratings can be used to estimate within-pair variances of true scores, which can, in turn, be modeled with any of the conventional approaches to partitioning genetic and environmental variance within families.
Eaves
L J
LJ
Department of Human Genetics, Medical College of Virginia, Richmond 23298.
Neale
M C
MC
Meyer
J M
JM
D006801:Humans; D008957:Models, Genetic; D010551:Personality / Q000235:genetics*; D010641:Phenotype; D012931:Social Environment; D014427:Twins / Q000235:genetics* / Q000523:psychology*