title: Possible biases in heritability estimates from intraclass correlation.
abstract: There is an inherent bias in intraclass correlations since the expectation of a ratio does not equal the ratio of expectations. A simple accurate approximation for this bias is derived, and it is found that the inherent bias is usually negligible. Selection of sires is known to bias half-sib heritability estimates, and appropriate formulae are given and discussed.
authors: School of Wool and Pastoral Sciences, University of New South Wales, Kensington, Australia.
authors: R W
authors: RW
authors: Ponzoni
authors: J W
authors: JW
authors: James