Author: Norwich PEM

Powered by coffee, cake, and a love of all things educational, the team at Norwich PEM is always on the lookout for the next big question to answer with a #PowerNAP

Predictive Values

Understanding what tests mean when they are positive and negative is one of the fundamental skills for being a good, evidence-based practitioner. But how do we know how to interpret them? This weeks #PowerSTAT has the answer, on predictive values in testing

Relative Risk

Relatives can be tricky at times, especially around holidays. But this week’s #PowerSTAT isn’t about Grandma’s knitting, it’s about relative risk, a statistic that is often encountered in journal club

Sensitivity vs Specificity

The week is nearly over – time for another #PowerSTAT! Sensitivity and specificity are often quoted in articles when looking at the characteristics of a test, but are you clear on what they mean?

Well, wonder no longer!