Which of the following epidemiological methods is essentially the same as a true experiment?

Question

Quizplus · Accepted Answer

A randomized clinical trial is essentially the same as a true experiment because it involves randomly assigning participants to either a treatment or control group and measuring the outcome of interest, similar to a controlled laboratory experiment. Retrospective and prospective studies are observational and do not involve randomly assigning participants. Meta-analysis is a systematic review that summarizes data from multiple studies and does not involve collecting new original data.

Which of the Following Epidemiological Methods Is Essentially the Same