The critically-minded have been asking questions about the reliability of quality statistics for years. Since the 1999 Institute of Medicine report estimating that 98,000 patients die a year from ...

In this study, we investigated bias caused by spatial variability and spatial heterogeneity in outdoor air-pollutant concentrations, instrument imprecision, and choice of daily pollutant metric on ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Every survey finding published by Pew Research ...

The supposed fact that medical errors are the third leading cause of death in the United States has become a meme, spreading virally through society from the scientific literature to the evening news.

Accurately measuring government benefit receipt in household surveys is necessary when studying disadvantaged populations and the programs that serve them. The Food Stamp Program is especially ...

I am looking to estimate the potential for failure in a complex system using Monte Carlo simulation. I am quite familiar with using MC for engineering simulations, but have never approached the ...