Welcome Guest Search | Active Topics |

Tag as favorite
Signal Detection Theory
Options
Previous Topic Next Topic
Natasha_4902
#1 Posted : Wednesday, July 01, 2020 1:11:26 AM
Rank: Advanced Member

Groups: Registered
Joined: 6/8/2020
Posts: 62

Thanks: 0 times
Was thanked: 0 time(s) in 0 post(s)
Hi,

For signal detection theory, wouldn't the ratio of the hit rate and the false alarm rate be a measure of specificity (too many false alarms-not specifying signal from noise well enough)? Also, wouldn't the ratio of the hit rate and the missed hits be a measure of sensitivity (how well you are able to detect the signal)? This would be the reverse to what the EK book says on page 120 so I am a bit confused.

Thank you
Back to top
Report?
INSTR_Ahmed_38
#2 Posted : Tuesday, July 07, 2020 5:01:36 PM
Rank: Newbie

Groups: Registered
Joined: 6/24/2019
Posts: 4

Thanks: 0 times
Was thanked: 0 time(s) in 0 post(s)
Hi Natasha,
Specificity is thought of as the proportion of actual negatives that are correctly identified as such. So it is the ratio of true negatives / false positives.
Sensitivity is thought of as the proportion of actual positives that are correctly identified as such. So the ratio between true positives / false negatives.
Hope this helps,
Back to top
Report?
Users browsing this topic
Guest
Tag as favorite
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Clean Slate theme by Jaben Cargman (Tiny Gecko)
Powered by YAF | YAF © 2003-2009, Yet Another Forum.NET
This page was generated in 0.089 seconds.