Unit nonresponse and item nonresponse both occur frequently in surveys. Unit nonresponse is customarily handled by weighting adjustment, whereas item nonresponse is usually treated by some form of ...

Under a linear regression model, the best linear unbiased estimator (BLUE) for a finite population total can be obtained. The problem studied here is that of estimating the variance for setting ...

Models to estimate heritability (twin or SNP h2) are typically linear models that can be seen as extensions of the simple linear model between two variables, from which one estimates a correlation.