Definition, Meaning & Synonyms

controlled-study

Noun

/kənˈtroʊld ˈstʌdi/

Definition

A controlled study is a type of scientific experiment or research design that involves the comparison between a treatment group and a control group.

Examples

The clinical trial was a controlled study to test the new medication’s effectiveness.
In a controlled study, participants are often randomly assigned to different groups to reduce bias.
Researchers conducted a controlled study to evaluate the impact of sleep on cognitive performance.

Meaning

This study is used to establish cause-and-effect relationships by isolating the effects of a particular variable while keeping other conditions constant.