Abstract
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.
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This research is supported by Grant GM-30250 from the National Institutes of Health.
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Eaves, L.J., Neale, M.C. & Meyer, J.M. A model for comparative ratings in studies of within-family differences. Behav Genet 21, 531–536 (1991). https://doi.org/10.1007/BF01066679
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DOI: https://doi.org/10.1007/BF01066679