Predicting the decision threshold

Predict the threshold for a fixed true/false positive rate.

1. Activate the analysis report worksheet.
2. On the Analyse-it ribbon tab, in the Diagnostic Accuracy group, click Predict, and then click:

   Option	Description
   Fixed FPF	Predict the TPF (Sensitivity) and Threshold at a fixed FPF
   Fixed TPF (Sensitivity)	Predicts the FPF and Threshold at a fixed TPF.
   Threshold	Predict the TPF (Sensitivity) and FPF at a decision threshold.

   The analysis task pane Decision panel opens.
3. In the TPF / FPF / Threshold edit box, type the value at which to determine the other parameters.
4. If you want a plot of the sensitivity and specificity for each decision threshold:
   1. On the Analyse-it ribbon tab, in the Diagnostic Accuracy group, click Decision Threshold.
      The analysis task pane Decision panel opens.
   2. In the Plot drop-down list, select Sensitivity / Specificity.
5. Click Recalculate.