Pair Design

Pair design is an experimental method where two different groups or treatments are closely matched based on certain characteristics, allowing for more accurate comparison of outcomes. Instead of testing each group separately, each pair consists of similar units—like individuals, locations, or times—one assigned to each condition. This approach helps control for variables that could influence results, increasing the reliability of conclusions about the effect of the treatment or intervention being studied. Pair design is commonly used in clinical trials and scientific research to improve precision and reduce bias.