Estimation of Interclass and Intraclass Correlations in Multivariate Familial Data

Abstract
Asymptotically normal estimators of interclass and intraclass correlations are derived for more than two quantitative characteristics of parent and siblings in a simple random sampling of families that have different numbers of offspring. These estimators are proposed as an alternative to the maximum likelihood estimators, which can be found only by iterative methods requiring prohibitively large amounts of computation. The asymptotic variances of the proposed estimators are also given. In an illustrative example, these easily computable estimators are seen to be comparable to the corresponding maximum likelihood estimators.
Description
Full text can be accessed at http://www.jstor.org/stable/2531902?seq=1#page_scan_tab_contents
Keywords
Asymptotic theory, Delta method, Maximum likelihood estimation, Quasi-Newton method
Citation