The world looks to scientists to both discover information that explains life and its various phenomena and interpret that information. Scientific discoveries and theories are then considered when ...

We surveyed all two-arm phase III RCTs presented at ASCO annual meetings from 1995 to 2003 for which negative results were obtained. Post hoc calculations were performed using a power of 80% and an α ...

Basic concepts in hypothesis testing, including effect sizes, type I and type II errors, calculation of statistical power, non-centrality parameter, and applications of these concepts to twin studies.

It could not have been a coincidence, but the National Statistics Bureau launching its national strategy for the development of statistics, a day after the National Day, could help the country, ...