Although we found bias in samples selected physically, we suspected it also might have played a part in choosing items from a list (for example, picking accounts receivable from a trial balance), an ...

Peter Lynn, Bridget Taylor, On the Bias and Variance of Samples of Individuals: A Comparison of the Electoral Registers and Postcode Address File as Sampling Frames, Journal of the Royal Statistical ...

The ability of matched sampling and linear regression adjustment to reduce the bias of an estimate of the treatment effect in two sample observational studies is investigated for a simple matching ...

With weighting, groups that were oversampled are brought back in line with their actual share of the population – removing the potential for bias. When people think about opinion polls, they might ...