Possible biases in heritability estimates from intraclass correlation

✍ Scribed by R. W. Ponzoni; J. W. James

• Book ID: 104696682
• Publisher: Springer
• Year: 1978
• Tongue: English
• Weight: 238 KB
• Volume: 53
• Category: Article
• ISSN: 0040-5752
• DOI: 10.1007/bf00273132

✦ Synopsis

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.