Much of today's scientific knowledge has been generated by what has colloquially been termed the 'scientific method'. The Oxford English Dictionary defines the scientific method as “a method or ...

In the world of phylogenetics, there's team sponge and team comb jelly. Which creature roots the animal tree of life—the simple sponge or the more complex comb jelly—has stirred fierce debate among ...

Challenging risk assessment methods used for decades by toxicologists, a new review of the literature suggests that oral gavage, the most widely accepted method of dosing lab animals to test chemical ...

In the Neyman-Pearson theory of hypothesis testing it is customary to calculate significance levels and power functions on the assumption that the sample size is fixed. The main purpose of this paper ...