It is shown that there is a substantial positive sampling correlation between the regression of offspring on mid-parent and the covariance of full sibs estimated from the same data, and that in a ...

One common problem in the use of multiple linear or logistic regression when analysing clinical data is the occurrence of explanatory variables (covariates) which are not independent, ie ...

A quantitative study is made of the bias in the usual estimate of the linear correlation coefficient and of the relative efficiency of the estimated regression, when a certain type of selective ...