Tag Likelihood ratio

Critical appraisal

You have to know what you are looking for

Critical appraisal of diagnostic studies. Some recommendations for the critical reading of works on diagnostic tests are given, evaluating the key aspects: validity, relevance and applicability.

09/04/2018

Epidemiology

All that glitters is not gold

Assessment of diagnostic tests A brother-in-law of mine is very concerned with a dilemma he’s gotten into. The thing is that he’s going to start a small business and he wants to hire a security guard to stay at the…

05/13/2014

Statistics

Size and power

Power and sample size Two associated qualities. And very enviable too. Especially when it comes to scientific studies (what were you thinking about?). Although there’re more factors involved, as we’ll see in a moment. Let’s suppose we are measuring the…

07/30/2013