On the Sampling Variance of Intraclass Correlations and Genetic Correlations
نویسندگان
چکیده
منابع مشابه
On the sampling variance of intraclass correlations and genetic correlations.
Widely used standard expressions for the sampling variance of intraclass correlations and genetic correlation coefficients were reviewed for small and large sample sizes. For the sampling variance of the intraclass correlation, it was shown by simulation that the commonly used expression, derived using a first-order Taylor series performs better than alternative expressions found in the literat...
متن کاملIntraclass correlations: uses in assessing rater reliability.
Reliability coefficients often take the form of intraclass correlation coefficients. In this article, guidelines are given for choosing among six different forms of the intraclass correlation for reliability studies in which n target are rated by k judges. Relevant to the choice of the coefficient are the appropriate statistical model for the reliability and the application to be made of the re...
متن کاملOn testing equality of intraclass correlations under unequal family sizes
The three likelihood-based tests, namely, likelihood ratio test, Rao score test, and Wald test and two more asymptotic tests which use Srivastava’s estimator of intraclass correlation coefficient are considered to test the null hypothesis of equality of intraclass correlation coefficients when the families have unequal number of children. Methods are illustrated on Galton’s data set. Using simu...
متن کاملRealized sampling variances of estimates of genetic parameters and the difference between genetic and phenotypic correlations.
A data set of 1572 heritability estimates and 1015 pairs of genetic and phenotypic correlation estimates, constructed from a survey of published beef cattle genetic parameter estimates, provided a rare opportunity to study realized sampling variances of genetic parameter estimates. The distribution of both heritability estimates and genetic correlation estimates, when plotted against estimated ...
متن کاملIntraclass Correlations for Planning Group Randomized Experiments in Rural Education
This material is based upon work supported by the National Science Foundation under Grant No. 0129365. Correspondence concerning this article should be addressed to Larry V. Hedges, Northwestern University, WCAS Statistics Education & Social Policy Institute for Policy Research, Annenberg Hall EV2610, Evanston, IL 60208. ([email protected]) Citation: Hedges, L. & Hedberg, E.C. (2007, Au...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Genetics
سال: 1998
ISSN: 1943-2631
DOI: 10.1093/genetics/149.3.1605