[Kruno]

hey, i added another lecture to my youtube channel. it quickly explains the effect that changes in the cut-off level for a positive test and the prevalence of a disease have on the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of a test.

Sensitivity, Specificity, PPV, and NPV: Quick Comparison

 

[Kruno]

as a complement to the video above, here is a more in-depth lecture comparing sensitivity, specificity, ppv and npv. each step of the video is now animated in order to enhance the learning experience.

to watch the video, click on the following youtube link...
Sensitivity vs. Specificity vs. PPV vs. NPV: Step-By-Step Comparison

the goal of this lecture is to help you visualize the effect that changes in the cut-off level for a positive test and the prevalence of a disease have on each of these measures of test performance.

 

[Kruno]

thank you!

thanks for watching the lecture.... the Step-By-Step Comparison video now has over a hundred views.

does anyone have any constructive criticism or suggestions?

 

[Kruno]

ppv vs. npv

heres one more video for those who just want a comparison of the positive and negative predictive values...

Positive Predictive Value (PPV) vs. Negative Predictive Value (NPV)