I have tried to learn this concept about 100 times in medical school. It never made sense to me. Your one short video talking about cars has somehow completely driven this concept into my mind! Thank you SO MUCH!
I have an exam in a week and I couldn't understand the the SPIN and SNOUT thing so I searched Sensitivity and specificity explained intuitively and this came up. Not disappointed, it explained so much. Thank you.
Excellent video from an excellent physician. I worked with Dr. Seheult for several years and I can say he definitely knows his stuff and has a great voice and ability to explain clearly, no doubt. Thank you doctor it helped immensely.
Thank you, simple explanation for what is a relatively difficult concept. Think i struggled due to my understanding of the words 'specific' and 'sensitive'
I have understood 50% of the video. But after 6:21 the next part was a bit confusing for me. Still for the 50% a thank you won’t be enough. But still thank you very much. 🤚
The interpretation I made: Spec. is the number (or %) of negative cases it _accurately_ rules out. (Negatives) Sens. is the number (or %) of cases it accurately _identifies_ . (Positives) Thus, for any given test there will be a gap (or %), which is the number of cases that cannot be accurately known, or, are _unknowable_ (as FP or FN).
Helpful, but when you got to the bell curves, it was hard to visualize TP/FP and TN/FN because you didn't actually label them under the curves. If that makes any sense. You filled the spaces in, just no labels.
That's because it's very hard, he would have to draw it three times. But for reference, if the test is equally sensitive and specific (point B), the half of the curve on the left is the TN, the half of the curve on the right is the TP, and the bisecting part in the middle from left to right is the FN and FP.
9:35 Im sorry I am dumb. If there is very low false positive rates, doesnt that mean youre very sensitive, instead of specifc? This confuses me so much
At the end of the video it says there's a "next video" Still waiting on a part 2, will it still come? Also can you explain positive and negative predictive values?
MedCram - Medical Lectures Explained CLEARLY : Forgive me, I meant to reply to the comment below. At minute 2:50ish, the word "Thief" is misspelled. The last person to comment made mention of it, or I wouldn't have noticed. This video was very helpful, truly.
What is and why do tests have a "pre-setting"? 🤔. Take the covid-19 testing, could it be that the prerequisite for identifying the virus is highly similar to other viruses, thus giving false positives?
Hi, I am confused about the cutoff point for most of the true positives, the highest positive predictive value, the lowest negative predictive value and the highest specificity on graph. At what point, I get most of the true positives and at what point I get the highest specificity. I hope someone clarifies these. I would be much more appreciated.
Dear Dr. Seheult, I did two different test for detection of a bacteria in the same population. Is it possible to calculate PPV, NPV, Sensitivity and Specificity of each test Separately with out gold standard ? Could you guide me please. Thank you for your consideration and confirmation would be appreciated. Sincerely, Narjes
Could any one solve my problem or come a cross this problem pls let me know I have got trigenomial neuralgia from 17 yrs and I have been taking tegretol for all these years now lately l have developed sensitivitiness in leg and arm l cannot touch cold or hot water cannot walk longer pls help
+Bhupen Sinha false positives are people who don’t have disease but test positive. They go in the right column and top row by definition. False negatives are people who have disease but test negative. They go in the left column bottom row by definition.
I have tried to learn this concept about 100 times in medical school. It never made sense to me. Your one short video talking about cars has somehow completely driven this concept into my mind! Thank you SO MUCH!
I have an exam in a week and I couldn't understand the the SPIN and SNOUT thing so I searched Sensitivity and specificity explained intuitively and this came up. Not disappointed, it explained so much. Thank you.
OH MY GOSH this actually makes sense finally! As I write boards, here I am
Once again trying to learn this! Thank you! You’ve done it!
Thanks for this video from 6 years ago. What makes this concept clear is to realize that there is noise you're trying to contend with.
This is, by far, the best explanation of Sensitivity and Specificity! Thank you!
Speaking my language, you used the perfect examples and methods to teach this!
Excellent video from an excellent physician. I worked with Dr. Seheult for several years and I can say he definitely knows his stuff and has a great voice and ability to explain clearly, no doubt. Thank you doctor it helped immensely.
Todd Mason Thank you Todd, great to hear from you
This was by FAR the best breakdown and explanation I've come across. Thank you!!
Brilliant explanation. Could you make a video on sensitivity and specificity with a real-time example? A drug-disease interaction would be great.
Wow, you made it so much easier to understand than our professor. Great use of the analogy of the car alarm. Thank you!
All of your videos are great. They are concise, well planned, and effectively communicate the concepts! Thank You!
You sir are an absolute legend. Couldn't't have explained it any better. Thank you!!
Best video on sensitivity and specificity, great job!
that car example has clarified everything I was confused about .. thank you so much ^-^
this was fab thank you so much. Your title is just what I found in the video "EXPLAIND CLEAR" meaning we have a true-positive (TP) :D
Great stuff. Simplified👌
Quite explanatory and the car example was chosen "specifically".
where is the second video for the mathematical interpretation part ?
Great analogy with the car, makes it so much more simpler!
Thank you, simple explanation for what is a relatively difficult concept. Think i struggled due to my understanding of the words 'specific' and 'sensitive'
+Omer Elhassan Thank you for the feedback
What is the next video called please? I can't find it
I have understood 50% of the video. But after 6:21 the next part was a bit confusing for me. Still for the 50% a thank you won’t be enough. But still thank you very much. 🤚
The interpretation I made:
Spec. is the number (or %) of negative cases it _accurately_ rules out. (Negatives)
Sens. is the number (or %) of cases it accurately _identifies_ . (Positives)
Thus, for any given test there will be a gap (or %), which is the number of cases that cannot be accurately known, or, are _unknowable_ (as FP or FN).
Explanation provided is quite good
Thank you for this great explanation!
This is the best video I could find explaining sensitivity and specificity clearly, THANK YOU!
Excellent explanation with lucid examples ... awesome !!!
Helpful, but when you got to the bell curves, it was hard to visualize TP/FP and TN/FN because you didn't actually label them under the curves. If that makes any sense. You filled the spaces in, just no labels.
That's because it's very hard, he would have to draw it three times. But for reference, if the test is equally sensitive and specific (point B), the half of the curve on the left is the TN, the half of the curve on the right is the TP, and the bisecting part in the middle from left to right is the FN and FP.
This is fantastic.. thanks so much. When is the next video in the series going up?
9:35 Im sorry I am dumb. If there is very low false positive rates, doesnt that mean youre very sensitive, instead of specifc? This confuses me so much
A low false positive rate means that it will only be positive when it’s true, which makes it very specific
@Medcram Ohh I thought of the opposite, thank you
At the end of the video it says there's a "next video"
Still waiting on a part 2, will it still come? Also can you explain positive and negative predictive values?
They released another one. ua-cam.com/video/ZPc6_UkdtzU/v-deo.html
Fantastic! thank you sir
Yes, it's really clear in explanation. Thank you so much!!
為主作工 good to hear- thank you
Thank you so much! Its very clear now.
Excellent. after many years I got my answer. Thank you .
we need this for npv. and ppv too
a lot of thanks
you make the things so easy
I appreciate the misspelling... I'm not alone! Evil e-i combos. THANK YOU for this video...
+Pam deWilde Thanks for the comment, but what is the misspelling are you referring to?
MedCram - Medical Lectures Explained CLEARLY : Forgive me, I meant to reply to the comment below. At minute 2:50ish, the word "Thief" is misspelled. The last person to comment made mention of it, or I wouldn't have noticed. This video was very helpful, truly.
+Pam deWilde No problem at all, thanks for letting us know, and apologies for the misspelling!
Great video, but does any one tell me where is the following part about the mathematical part?
What is and why do tests have a "pre-setting"? 🤔. Take the covid-19 testing, could it be that the prerequisite for identifying the virus is highly similar to other viruses, thus giving false positives?
Hi, I am confused about the cutoff point for most of the true positives, the highest positive predictive value, the lowest negative predictive value and the highest specificity on graph. At what point, I get most of the true positives and at what point I get the highest specificity. I hope someone clarifies these. I would be much more appreciated.
great video...hope you will go on to part 2 :)
Great video! Can you please explain IV fluids in clinical practice? Thanks a lot
Thank you :) ! You always have wonderful explanations.
Dear Dr. Seheult,
I did two different test for detection of a bacteria in the same population. Is it possible to calculate PPV, NPV, Sensitivity and Specificity of each test Separately with out gold standard ? Could you guide me please. Thank you for your consideration and confirmation would be appreciated.
Sincerely,
Narjes
+Narjes Seghatoleslam in order to calculate Ppv and npv you need to have accurate info on disease. This requires a gold standard.
Dear Dr. Seheult, thanks a lot for response, it is very nice of you.
Thank you for the video. It was helpful.
Glad it was helpful - thanks for the comment
excellent Roger!
This is brilliant !
Brilliant video!
Very Well Explained...!
thanks for the explanation ... I get it now!
Really helpful. Thank you
Could any one solve my problem or come a cross this problem pls let me know
I have got trigenomial neuralgia from 17 yrs and I have been taking tegretol for all these years now lately l have developed sensitivitiness in leg and arm l cannot touch cold or hot water cannot walk longer pls help
That was a nice explanation. Cheers! :)
Excellent !!!
If population is on y axis,What is on x axis?
still a bit hard to grasp but I think I'm on the right track now!!
I love your lectures!!! Could you do one on neuro?
finally makes sense. wow..
Great presentation :)
well explained! thanks
Great as ussual.Thanks
thank u so much bro God bless you
I love you! I will always refer to disease as "thief" and test to "alarm". hehe
Cool bro! Great job!
please upload next one...
thank you!
Specificity = TNR and Sensitivity = TPR...you mixed something up at your explanations 9:48 ...still good video!
next video??
really good !!!
THANK YOU!!!!
Thank you.
Thanks!
Great simple easy
excellent...
I think, sensitivity= TN/ TN+FN
And specificity= TP/ TP+FP
Thanks for the video its awesome, the car example is genius! but theif!!! makes my eyes hurt! hahaha
Thanks
Because of the epidemiological fallacy, test sensitivity should be high regardless of any demographic factors.
Thief written "theif" and you are obviously a Native English speaker.. Yes, you really must be a very good doctor!!! ( No sarcasm. It's true. :))
Came here from Jeff Heaton's Machine Learning course :)
Really good but I before e except after c. 😄
Brilliant
6:00
FP and FN aren't correctly put .. interchange em...
+Bhupen Sinha false positives are people who don’t have disease but test positive. They go in the right column and top row by definition. False negatives are people who have disease but test negative. They go in the left column bottom row by definition.
Dont understand car eg make it more difficult...
"Thief", not "Theif." Still, very clear. Thank you.
Spell thief correctly please
lmaooo
+janice baker yeah I know. "Thief" there!
Get out of here
unwatchable video! jkjk!
great thanx
Thankssss
High
Sensitivity low specificty
Great :) Thanks alot
Greeeeeeat
👌🏻👌🏻🙌🏼🙌🏼👏👏
Thief not theif....👌
What’s a boombox? Ha ha jk.
I like your tutorial. I hate the car alarm example.
“I don’t get it” *twirls long blonde hair with index finger*
"Thief"
Thief ;)