That's also why experimental psychologists have mixed feelings about running power analyses* to figure out how many participants they'll need in a study to to y

That's also why experimental psychologists have mixed feelings about running power analyses* to figure out how many participants they'll need in a study to to yield statistically meaningful results--it's almost always a humbling high figure. * http://en.wikipedia.org/wiki/Statistical_power http://en.wikipedia.org/wiki/Statistical_power