The COVID-19 pandemic has infected over 38 million people around the world and is showing no signs of going away any time soon. Researchers worldwide are frantically working on developing an effective ...

A recent study posted to the medRxiv* pre-print server estimated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemiological parameters by using various sampling strategies on the ...

Various recent developments in survey theory have focused on the choice of sampling strategy guided by auxiliary information incorporated into a model. Efficiency and robustness concepts that play a ...

One possible explanation for the variability in estimates across the different nonprobability samples is the range of methods that online sample vendors employ. They differ on recruitment, weighting ...