This paper examines the effects of systematic and random errors in recall and of selection bias in case–control studies of mobile phone use and cancer. These sensitivity analyses are based on ...

Skeptics who still doubt anthropogenic climate change have now been stripped of one of their last-ditch arguments: It is true that there has been a warming hiatus and that the surface of Earth has ...

GPS receivers must deal with measurements and models that have some degree of error, which gets propagated into the position solution. If the errors are systematically different for the different ...

Figure 2D depicts high random and systematic errors in the distribution of the quantified values. The device shows both poor precision and poor trueness. Reproducible, accurate, and exact measurements ...

Learn how representative samples and random samples differ and why combining them minimizes sampling bias for accurate data.