randomized design

A randomized design is a research method where participants are assigned to different groups by chance, like flipping a coin. This approach helps ensure that the groups are similar in all respects except for the treatment or intervention being tested. By randomly assigning participants, researchers reduce bias and increase the likelihood that differences in outcomes are due to the treatment itself, not other factors. This method improves the reliability of the results and helps researchers draw more accurate conclusions about the effectiveness or impact of what’s being studied.