On watching this video, students should be able to: Distinguish between an observational and experimental study. Explain the main reason why a randomised experiment can if done well, be used as a test ...

Observational studies are critical tools in clinical research and public health response, but challenges arise in ensuring ...

Using the potential outcomes framework of causality, topics covered include research designs such as randomized experiments and observational studies. We explore the impact of noncompliance in ...

Research finds no overall difference in cancer risk between red and white wine, but white wine is linked to higher cancer ...