This is an old revision of this page, as edited by Davidruben (talk | contribs) at 23:38, 5 May 2014 (add deficinition for accuracy). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 23:38, 5 May 2014 by Davidruben (talk | contribs) (add deficinition for accuracy)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)| Condition (as determined by "Gold standard") | ||||
| Condition positive | Condition negative | |||
| Test outcome |
Test outcome positive |
True positive | False positive (Type I error) |
Precision = Σ True positiveΣ Test outcome positive |
| Test outcome negative |
False negative (Type II error) |
True negative | Negative predictive value = Σ True negativeΣ Test outcome negative | |
| Sensitivity = Σ True positiveΣ Condition positive |
Specificity = Σ True negativeΣ Condition negative |
Accuracy = Σ True positive + Σ True negative Σ Total population | ||