Tag Archives: Cochrane

Absence of evidence is not evidence of absence

An invisible unicorn has been grazing in my office for a month…Prove me wrong.
by Martin Burton, Evidently Cochrane

invisible-unicorn

An excellent blog on interpreting the findings from research evidence – the importance of effect size and an sufficiently large sample size from which to draw meaningful conclusions. In fact, caution is urged in drawing any firm conclusions from any one study. But what if there were a million people in each arm of a randomised clinical trial? Surely that is enough to be able to be sure that a treatment actually works or does not? The answer to that might surprise you…