
Quasi-experiment
A quasi-experiment is a research study that investigates the effect of an intervention or variable without randomly assigning participants to different groups. Unlike true experiments, where participants are randomly chosen, quasi-experiments study real-world situations where researchers observe naturally occurring groups or conditions. This approach helps researchers understand potential cause-and-effect relationships in practical settings, though it may be lessontrol over variables, which can influence the certainty of conclusions. Quasi-experiments are commonly used in fields like social sciences and healthcare to evaluate programs, policies, or treatments where randomization isn't feasible.