However, in statistics, these terms are usually used for controlled experiments.

Of these, 11 agreed to participate in a controlled experiment.

For some years now Washington has been the site of a fascinating controlled experiment.

The first controlled experiment into women's ability to act as senior business executive shows that the best of British women are, without doubt, world class.

As for me, I'm thinking it's time to do controlled experiments.

But it is simple to run a controlled experiment with a Web page.

"They are probably the best model we have right now for controlled experiments on social systems."

But was it possible to work out a controlled experiment?

For how much closer can music come to a controlled experiment than this one?

This is a controlled experiment that should be of value to us all.