Selection Bias

Small Data, Big Time—A retrospect of the first weeks of COVID-19

Small Data, Big Time—A retrospect of the first weeks of COVID-19

To be read before The Royal Statistical Society at the Society's 2021 annual conference held in Manchester on Wednesday, September 8th, 2021, the President, Professor Sylvia Richardson, in the Chair.

A note on post-treatment selection in studying racial discrimination in policing

We discuss some causal estimands used to study racial discrimination in policing. A central challenge is that not all police-civilian encounters are recorded in administrative datasets and available to researchers. One possible solution is to …

BETS: The dangers of selection bias in early analyses of the coronavirus disease (COVID-19) pandemic

We developed a generative model for key epidemiological events in COVID-19 patients and derived explicit formulae to correct for selection bias. We find that several early analyses of the COVID-19 pandemic were severely biased due to sample …