Sensitivity, Specificity, PPV, NPV

​​SUPPORT/JOIN THE CHANNEL: / @dirtymedicine
My goal is to reduce educational disparities by making education FREE.
These videos help you score extra points on medical school exams (USMLE, COMLEX, etc.)
For educational purposes only; NOT medical or other advice.
Some videos contain mild profanity and hyperbole solely used to assist with memorization. Viewer discretion advised.
Opinions are entirely my own.

[@DirtyMedicine]

Obviously I meant to say 2x2 LOL

[@Razorsnake92]

Is there a way to actually compute Sensitivity and Specificity for a 4x4 table?

[@eriktatos]

That I’d call everything after my surgery core 💀

[@DrRussell]

Bro, you obviously like 4 wheel drive vehicles, even if just subconsciously. Thank you for this work, still having to revise it again after 40 years of life.

[@squishymallow851]

It’s called 2by 2 or 4 by 4 …both

[@salmansiddiq5125]

Used this vid in step 1 using it in Step 3 prep what a legend Dr Dirty is massive respect

[@happyworld2985]

You are a pure genius in teaching. You make things so easy to remember. Thanks a million.

[@cucumbermelon6166]

If it helps to remember, all the calculations have a true value in the numerator 👍

[@JJMomoida]

This is precisely how I remember it. "Truth on top!"

[@anonymonsters]

I watched this for COMLEX Level 1 last year, and now I'm watching it again the night before my COMLEX Level 2 because they're still asking these questions. Best high yield boards stats video I've ever found, thank you for making this!

[@hussainalkh]

My prof at uni took countless 2,5Hr lectures to explain this exact topic , But this man did it in 10 min , Thanks alot for this clear , simple and very informative explanation. Wish you all the best

[@AlaaSharaf-bg5db]

he didn't explain he gave you a mnemonic, my professor exaplained this concept and solved examples in 1 hour, and i didn't really need to memorize anything the words give it away

[@hussainalkh]

if your prof did a good job you wouldn't be searching for these informative vids lol@@AlaaSharaf-bg5db

[@achuilajang7072]

Wow!! this guy is superb in explaining these calculations. I will never ever forget it again.

[@brittanystelmar5979]

used this gem for step 1 & 2, now im back watching it again for step 3. LOVE your content so freaking much!!!

[@FitnessFusion12145]

Just wow! What an amazing explanation! Thank u so much sir.

[@FadyAbdulsattar]

You are a Professional teacher... Can't imagine a better way for explaining this 🧨✨️

[@aliomertv]

Thank you so much for the videos you're making . Don't stop and keep up the good work !

[@DrStayAtHomeMom]

Love the mnemonic, it is CLEVER !! Thank you so much

[@yashpawate1306]

This is amazing, thank you! Where is the part 2 of the video where you will be doing questions and all? I can't find it anywhere.

[@LeiShuang311]

WOW. I am a recent grad from residency about to take my board exam and I cannot this is the first time I am learning this the right way. Why does not one teach this way???

[@SanthoshKumar-kx1xh]

Beautifully explained. No one will forget this concept which you teach. Lots of Love

[@zuhaibmurtaza8951]

Keep making videos plz! Your videos are really clutch in all aspects. Straight to the facts no BS.

[@humairafatima4230]

Nice name 👍

[@leonardoalexisalmaguergong1102]

Hi Dirty. Awesome job. Easy to remember with your mnemonics. Where can I see the other videos of biostatistics? I couldn't find them on the playlist.

[@tanushreegaur6245]

Thank you so much for making this easier. It's heck of a something every time.

[@darinization]

Hey dirty med, do you post your videos on another platform? I cant seem to find older ones the I really liked. Thanks for these btw.

[@marcosmsm1]

this is great! best mnemonic I've heard in years

[@missysharon5155]

This is the best explanation by far! Thank you. Liked and subscribed.

[@zafarullahchaudhary465]

The prayers have been answered. 👍

[@africthemes]

This made me smiling all through. You are a legend. Thank you

[@seeonedoone]

Holy wow. This was great. How did I miss this for Step 1... Oh well. Hope it comes in handy for Step 2!

[@mandyamsaikiran]

Thanq so much for making things easier. Make a video on anatomy of upper and lower limb and buzz words in lesions 👍🏻cheers bro

[@Psalmshymnandspiritualsongs]

This video made these concepts very clear. Thanks 😊

[@husseinalmussawi]

Always you are the best Thanks from Iraq 🇮🇶 bro

[@bernardogavidia2030]

What's up man, question.. Where can I find normal distribution explanations that are Step oriented? I'm having trouble using the 64,95,99 rule.. along with using 34, 13.5, 2.4, .15. (How many people are above/below, what percentage is between.. type of questions..etc) any help??

[@asiimweesther7122]

Thanks so much. This was so simplified, and yet it gave me a rich understanding

[@wilsonashton4134]

Very helpful! Used it to get ready the Veterinary Board exam.

[@user-pg2yt8bh5j]

Thank you for your clear and detailed explanation. This video is very helpful!

[@gezashignmekonnen7738]

Thank your clear and very important lecture

[@u.r.1639]

You literally are saving my hope for my exams tomorrow ❤❤❤❤❤❤❤❤🎉🎉🎉 thank you so much

[@Tom-ff8cv]

Love all your videos! Video on types of bias and study error would be amazing~~

[@drrmk]

Yow bro....you d boss....geeetings from 🇯🇲🔥

[@brauliobml23]

You are awesome! Greetings from Puerto Rico.

[@kedarpaul7904]

Man, you killed it!

[@neeshantn4701]

SUPERB AND SIMPLIFIED!!! GOOD TEACHER PLEASE KEEP POSTING

[@vivpapas]

This was extremely helpful. Thank you!

[@ajabisong]

This video is too beautiful! We gallop to victory!

[@rekmasah]

GOD BLESS U .YOU ARE AWESOME

[@whatwho5329]

The best explanation I have ever seen , Thanks a lot

[@monika246]

I just don't believe... you made it so easy!!Thankyou so much.

[@g.annasmith9834]

Great explanation. Many thanks indeed.

[@enajranza7678]

Thank you Dirty! ❤️👍👍👍

[@stephenschmitt9]

I think instead of trying to remember the “up and down in life” trick, just recognize that you always start with a “true”. Then from you starting point, you have a vertical equation and a horizontal equation

[@user-cd8lc7qk6w]

Super explanation/ thank you a lot

[@hannahhannahb9650]

Your videos are so clear and helpful. I wish I'd had you way back in med school. :)

[@MrWOWzerLOL]

Sensitive boy is brought down Specific boy do well and go up! Positive boy go forward in life Negative boy go back in life :)

[@marianasim1048]

What a GENIUS! thank you

[@yougle101]

love this man. awesome method!

[@DrRussell]

Such a memorable explanation!

[@md.saifulislam679]

Nice presentation dear, it has removed all of my confusions.

[@rathorgaurav3312]

Thanks you ,,super explanation.!!!

[@Cleopatra-en4ye]

Thx a lot! you are perfect teacher!

[@AliHaider-kf7tw]

Thank you very much for the marvelous help.

[@elizabethherrin8981]

back again for step 3 - ty for your service

[@aishapanhwar39]

Bestesttt video ever ... God bless u

[@leenag7625]

This is AMAZING!! thank you SO much

[@innocenttembo3434]

Great explanation. Helped me understand this topic better than the Books!

[@sitapokhrel8837]

You are great dirty, you made our life so easy🙏

[@drsherlock3145]

Excellent!

[@mabelore3355]

Very helpful & simple explanation, thank you. Are sensitivity & specificity always going to be on the left and right respectively?

[@degoldessie1826]

I love your of explaining the down ward and up ward arrows

[@sidrarasool7073]

Awesome..😇

[@Xarakreshi]

Super ......seriously u nailed it sir......hats of to u.....❤❤

[@internationalEGY]

This is great, I love it thank you....

[@MrJIJO7]

Great man.. Thanks

[@beenishbilal6132]

Awesome video! You're amazing and bestest teacher ever!

[@nurula1783]

unbelievably simple. thank you so much!!

[@meow8151]

I cannot thank you enough 😭😭😭😭😭 saved me a lot of time thanks a lot

[@ebookreader994]

Great explanation !

[@diares8397]

I ll say it again,dirty usmle is a genius!

[@deborahrippe5641]

Thank you x 1 million!!

[@jango1489]

First time I felt proud of understanding stats.

[@ZionhouseusChurch-ex3qk]

This is soooo good. Thank you!

[@FrenchTipsAndFrenchies]

Did you make the video with the practice questions? I couldn’t find it. Helpful video tho thanks!!

[@drrktiwari]

Superb!

[@cryptonewbies5878]

For the PPV you can also think: positive to the RIGHT, because the "right" way is he positive way

[@doctorsdesk9578]

Awesome

[@Uds_Baduge]

Life savor! 😭🙏

[@cecilia76984]

I wish I could like this video more than once! Thanks :)

[@AJ-ul1lt]

Just want to say you're amazing!

[@sskfrey]

Awesome 😎

[@lucyalvarez1288]

When I was about to give up on these..I found your vid..wow thank youuu

[@sandywilliams5212]

This was great! Thank you!!

[@deekeyolmo564]

Amazing

[@drhasancb4]

Thank you very much. I was struggling with the formula.

[@shardulsandrugved1199]

Very nicely explained ❤

[@faree38green]

Thank you so much!

[@mentallyinsouthkorea1051]

ur a life savior!

[@migs6869]

Man you are a genius for real

[@kennethphiri4981]

Awesome 11 minutes of my life

[@drzeshan6156]

You are amazing

[@melody7421]

Thank you so much.

[@hanadimasad7315]

REALLY I WOULD LIKE TO THANK YOU YOU FOR YOUR AN AMAZING EXPLANATION ,I EXTREMELY SUFFERING FROM THIS TOPIC BUT NOW IT IS VERY EASY

[@AlaaSharaf-bg5db]

bruh i swear med studends complain about memorizing when they turn everything into mneumonics , this concept is easy once you understand it, the words literally tell you what you need to calculate.

[@JackofAce]

this is awesome thank you!

[@rozaadnan7723]

Thanks a million ❤️

[@jeffsoffice]

You hope we passed 9th-grade algebra. lol You're killing me!