To err is human
Systematic error. Systematic error, also called bias, usually leads to an inaccurate estimate of the variable we are studying.
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
Category Epidemiology
To see well you must be blind
Blinding. Masking or blinding is a concealment technique that prevents the existence of information biases.
The sun is not hurried by early risers
Preventive trials biases. Preventive trials require more time to be performed because participants are healthy people, so they are at risk of specific biases.
Do it with sensitivity
Sensitivity analysis. Sensitivity analysis allows assessing the effect on the results of the type of data used, the absent or extreme values, among others.
The turn of the screw
Youden’s index. Youden’s index or accuracy index is described, as well as the number needed to diagnose and the number needed to misdiagnose.