controlled experiment

American  

noun

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

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Etymology

Origin of controlled experiment

First recorded in 1885–90

Example Sentences

The party sees the programme as a controlled experiment to study the impact on productivity and profitability of reduced working hours across sectors.

From Reuters

In a randomized controlled experiment this year, I looked at how people reacted when they learned about a spate of new state bills aimed at driving down youth turnout.

From Washington Post

“Like The British Isles. So if we want The Ingerland, we would have to have more than one. Perhaps we could have one in the EU and one outside it. Like a controlled experiment.”

From The Guardian

The study involved a quantitative research technique called “difference in differences,” which mimics a controlled experiment with observational data.

From Scientific American

It is less a traditional old-folks’ home than a kind of geriatric nation-state, a controlled experiment in mature living — Plato’s Republic for aqua-joggers and bridge enthusiasts.

From New York Times