Category: "Statistics"

Testing for Equivalence

August 1st, 2014
To assess whether a new test (e.g. a medical device testing for disease or non-disease status) is equivalent to an existing test, the following measures can be reported. If the existing test is not perfect, the FDA recommends to report the positive… more »

Assessing Gene Predictions

November 2nd, 2009
Calculating prediction rate TP = true posisitives (correctly identified) FP = false positives (overpredicions) TN = true negatives (correctly un-called) FN = false negatives (missed) Specificity = TP / (TP + FP) Sensitivity = TP / (TP + FN)… more »