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Article

DF-analyses of heritability with double-entry twin data: asymptotic standard errors and efficient estimation.

Behavior genetics - 1 Mar 2001

Kohler H P, Rodgers J L

Abstract excerpt

In this paper we establish the asymptotic distribution of DeFries Fulker (1985) regression estimates for heritability and shared environmental influences with double-entry twin data. A simple formula to estimate the covariance matrix of the coefficients in DF-regressions is provided, and applications to simulated data and Danish twin data show that this method can substantially increase the statistical power of...

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PMID: 11545535
DOI: 10.1023/a:1010253411274

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