Bias amplification of unobserved confounding in pharmacoepidemiological studies using indication-based sampling: there is no free lunch in restricting the sample to those with a particular drug-indication
Sign Up to like & getrecommendations! Published in 2022 at "Pharmacoepidemiology and drug safety"
DOI: 10.1101/2022.02.07.22270609
Abstract: Estimating causal effects in observational pharmacoepidemiology is a challenging task, as it is often plagued by confounding by indication. Restricting the sample to those with an indication for drug use is a commonly performed procedure;… read more here.
Keywords: bias amplification; indication based; based sampling; drug ... See more keywords
Pre-screening workers to overcome bias amplification in online labour markets
Sign Up to like & getrecommendations! Published in 2021 at "PLoS ONE"
DOI: 10.1371/journal.pone.0249051
Abstract: Groups have access to more diverse information and typically outperform individuals on problem solving tasks. Crowdsolving utilises this principle to generate novel and/or superior solutions to intellective tasks by pooling the inputs from a distributed… read more here.
Keywords: bias amplification; amplification online; screening workers; pre screening ... See more keywords