Hi all

I desperately need help with Signal Detection Theory, particularly in the area of DPrime & ROC Curve.

I have read Signal Detection Theory- A user guide from Macmillan & Creelman, and also some online tutorial.
I have calculated Hits & False Alarm as well.

However, I'm not sure whether my analysis/calculation is correct and I read one way to do it is to check it is to plot a ROC plot (http://viperlibnew.york.ac.uk/areas/24-viper2go-tutorials/contributions/1844-signal-detection-theory?area_preview_page=2&from_preview=true).

I came across this site for the ROC plotting- http://www.rad.jhmi.edu/jeng/javarad/roc/JROCFITi.html
but didn't get it successful.

I'm wondering if anyone here uses ROC or DPrime to give me some guides on this?

Thanks in advance