TED-ED: Not all scientific studies are created equal - David H. Schwartz

The video discusses the reliability of scientific studies, focusing on randomized clinical trials (RCTs) and epidemiological studies. RCTs are the gold standard for human studies due to their randomization and control, but are not always feasible. Epidemiological studies observe existing behaviors and are useful for identifying health trends, but they have limitations like confounding variables. The video emphasizes the importance of understanding these limitations and critically evaluating health-related headlines.

What steps can researchers take to minimize errors in epidemiological studies?

Discuss the limitations of using observational studies to establish causal relationships.