A scientific control is an experiment or observation designed to minimize the effects of variables other than the single independent variable.

The correlation between risk and recall remains significant even when the effect of any other single variable is partialled out.

They contain only constant numbers and a single variable without an exponent.

For these surfaces moisture is the single most important variable in the maintenance of the surface.

In this outline we can simply regard it as a single variable.

Multiple flags can be combined in a single variable.

In this case, a consistent evaluation of variables can be always extended to a single other variable.

Well, it is not a simple matter of changing a single variable in either of the two Newton's laws.

He tries to cover every single variable as well as possible.

From a practical perspective, it could mean that the only tailored information specific to an individual is based on a single variable.