To effectively report on medical research, you should understand how big a difference that an intervention or an exposure makes.

Absolute risk can be the best for this, but many studies report other comparisons as well. Sometimes a study reports this effect size — the magnitude of difference between two groups — in terms that literally are Greek to me: Continue reading →

Tara Haelle (@TaraHaelle) is AHCJ's medical studies core topic leader, guiding journalists through the jargon-filled shorthand of science and research and enabling them to translate the evidence into accurate information.