Education and epidemiology | David Didau

Education and epidemiology | David Didau

Epidemiology is the science of trying to find out what makes people healthier. Epidemiologists look at data to identify causal links between improved health and other factors. It is a correlational science which means that it can never really prove a causal link it can only suggest that a connection between two or more variables is unlikely to be caused by chance.

Correlation is a tricksy business. Perfect correlations tend not to exists so the relationships epidemiologist find are always, to a greater or lesser extend, imperfect. No matter how clear a signal we think we’ve identified,…

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