crossover design

A crossover design is a study approach where each participant receives multiple treatments in a specific sequence. For example, a person might try Treatment A for a period, then switch to Treatment B after a washout phase. This allows researchers to compare treatments within the same individual, reducing variability and increasing reliability. It's especially useful when studying medications or interventions, as it helps determine which treatment works best while controlling for personal differences. Overall, this design efficiently uses participants to obtain clearer insights into treatment effects.