Test Bayesian Sensitivty/Specificity Calculator


  Disease No Disease
Postive TestTrue Positive: False Positive:
Negative TestTrue Negative: False Negative:
OR Enter, Prevalence, Sensitivity and Prevalence value here.
Prevalance: Sensitivity: Specificity:

Result

Predictive value (positive):
Predictive value (negative):
Positive Likelihood Ratio:
Negative Likelihood Ratio:
Formulas used:
Sensitivity = TP / (TP + FN)
Specificity = TN / (FP + TN)
Prevalence = (TP + FN) / (TP + TN + FP + FN)
PPV (Positive Predictive Value) = TP / (TP + FP)
NPV (Negative Predictive Value) = TN / (FN + TN)
Positive Likelihood Ratio= Sensitivity / ( 1- Specificity)
Negative Likelihood Ratio=( 1- Sensitivity) / Specificity

For definitions click here.
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