controlled experiment

noun

1. an experiment or trial that uses controls, usually separating the subjects into one or more control groups and experimental groups.

Word History and Origins

Origin of controlled experiment¹

First recorded in 1885–90

Example Sentences

In examining whether a school education improves the mental health of children, for example, no economist can design and run a controlled experiment.

From Quartz

Lysenko never undertook any controlled experiments on increased crop yield or the inheritance of acquired characteristics.

From Nautilus

So, through a series of controlled experiments, the team nudged participants toward the minus sign.

From Science News

While our controlled experiments showed DyRET could adapt its body successfully to surfaces it had walked on before, the real world is a much more variable and unpredictable place.

From Singularity Hub 

That is, the study wasn’t a randomized or controlled experiment.

From Freakonomics

A country of 300 million people is a permanent floating controlled experiment.

From The Daily Beast