Sensitivity, Specificity, PPV, NPV

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  • Опубліковано 20 січ 2025

КОМЕНТАРІ • 191

  • @DirtyMedicine
    @DirtyMedicine  5 років тому +276

    Obviously I meant to say 2x2 LOL

    • @Razorsnake92
      @Razorsnake92 4 роки тому +1

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

    • @eriktatos
      @eriktatos 2 роки тому

      That I’d call everything after my surgery core 💀

    • @DrRussell
      @DrRussell Рік тому

      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
      @squishymallow851 11 місяців тому

      It’s called 2by 2 or 4 by 4 …both

  • @salmansiddiq5125
    @salmansiddiq5125 2 роки тому +35

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

  • @happyworld2985
    @happyworld2985 6 років тому +96

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

  • @hussainalkh
    @hussainalkh Рік тому +25

    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
      @AlaaSharaf-bg5db Рік тому +1

      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
      @hussainalkh Рік тому

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

  • @cucumbermelon6166
    @cucumbermelon6166 5 років тому +134

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

    • @JJMomoida
      @JJMomoida 3 роки тому +9

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

  • @degoldessie1826
    @degoldessie1826 3 місяці тому +1

    Dirty! You are the champion 🏆 of medical education! Simple, concise, precise. I enjoy your creative Mnemonic❤

  • @anonymonsters
    @anonymonsters Рік тому +6

    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!

  • @brittanystelmar5979
    @brittanystelmar5979 2 роки тому +5

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

  • @FadyAbdulsattar
    @FadyAbdulsattar 2 роки тому +6

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

  • @achuilajang7072
    @achuilajang7072 4 роки тому +2

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

  • @MrWOWzerLOL
    @MrWOWzerLOL 3 роки тому +4

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

  • @SanthoshKumar-kx1xh
    @SanthoshKumar-kx1xh 2 роки тому +2

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

  • @u.r.1639
    @u.r.1639 Рік тому +2

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

  • @zuhaibmurtaza8951
    @zuhaibmurtaza8951 6 років тому +7

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

  • @yashpawate1306
    @yashpawate1306 5 років тому +22

    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
    @LeiShuang311 3 роки тому

    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???

  • @FitnessFusion12145
    @FitnessFusion12145 5 років тому +7

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

  • @stephenschmitt9
    @stephenschmitt9 10 місяців тому +1

    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

  • @ReemaTariq-v6o
    @ReemaTariq-v6o Рік тому

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

  • @africthemes
    @africthemes Рік тому

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

  • @wilsonashton4134
    @wilsonashton4134 2 роки тому +1

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

  • @mssharon20
    @mssharon20 2 роки тому +1

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

  • @meow8151
    @meow8151 Рік тому

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

  • @innocenttembo3434
    @innocenttembo3434 2 роки тому +1

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

  • @marcosmsm1
    @marcosmsm1 4 роки тому +4

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

  • @DrStayAtHomeMom
    @DrStayAtHomeMom 3 роки тому +1

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

  • @neeshantn4701
    @neeshantn4701 2 роки тому

    SUPERB AND SIMPLIFIED!!! GOOD TEACHER PLEASE KEEP POSTING

  • @asiimweesther7122
    @asiimweesther7122 2 роки тому +1

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

  • @ajabisong
    @ajabisong 9 місяців тому

    This video is too beautiful! We gallop to victory!

  • @hannahhannahb9650
    @hannahhannahb9650 Рік тому +1

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

  • @mandyamsaikiran
    @mandyamsaikiran 6 років тому +6

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

  • @lucyalvarez1288
    @lucyalvarez1288 2 роки тому

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

  • @aliomertv
    @aliomertv 6 років тому +3

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

  • @brauliobml23
    @brauliobml23 6 місяців тому

    You are awesome! Greetings from Puerto Rico.

  • @nommanudiennaibkhil8862
    @nommanudiennaibkhil8862 5 місяців тому

    I want to test sensitivity and specificity of Physical examination, and MRI against arthroscopy as golden standard. I have diagnosed injuries including Medial Meniscal Lesion, Lateral Meniscal Lesions, Anterior Cruciate Ligament Injuries. How can i test sensitivity and specificity and accuracy if I want to enter all data of 615 patients in one data sheet? I meant I want to calculate in SPSS.
    thank you in advance

  • @beenishbilal6132
    @beenishbilal6132 Рік тому

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

  • @Rhemanadol
    @Rhemanadol 3 роки тому +1

    This video made these concepts very clear. Thanks 😊

  • @seeonedoone
    @seeonedoone 5 років тому +3

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

  • @leonardoalexisalmaguergong1102
    @leonardoalexisalmaguergong1102 2 роки тому +7

    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.

  • @sitapokhrel8837
    @sitapokhrel8837 Рік тому

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

  • @degoldessie1826
    @degoldessie1826 9 місяців тому

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

  • @inthisalleyway9408
    @inthisalleyway9408 Рік тому

    I love you for this!!!! How do you come up with such mnemonics🧠🧠🔥

  • @whatwho5329
    @whatwho5329 3 роки тому

    The best explanation I have ever seen , Thanks a lot

  • @user-cd8lc7qk6w
    @user-cd8lc7qk6w 10 місяців тому

    Super explanation/ thank you a lot

  • @medicalstudent4313
    @medicalstudent4313 8 місяців тому

    What is the next video with the practice problems ? I cannot seem to find it :(

  • @Xarakreshi
    @Xarakreshi 2 роки тому

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

  • @Skepticalstudent45
    @Skepticalstudent45 2 роки тому +1

    I know ppv and Npv “take prevalence into account”… but I’ve never actually understood how this is the case in comparison to how Sn and Sp apparently don’t? Can someone explain?

  • @DrRussell
    @DrRussell Рік тому

    Such a memorable explanation!

  • @hanadimasad7315
    @hanadimasad7315 4 роки тому +2

    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

  • @ferasaljohani4357
    @ferasaljohani4357 2 роки тому +4

    love the video. wish i could see a similar one for ods ratio, RR, AR and other things. thank you

    • @eriktatos
      @eriktatos 2 роки тому

      Dido

    • @heenagujral244
      @heenagujral244 Рік тому

      I think he put other videos like from randy Neil under his playlist for biostats

  • @aishapanhwar39
    @aishapanhwar39 3 роки тому

    Bestesttt video ever ...
    God bless u

  • @g.annasmith9834
    @g.annasmith9834 2 роки тому

    Great explanation. Many thanks indeed.

  • @elizabethherrin8981
    @elizabethherrin8981 Рік тому

    back again for step 3 - ty for your service

  • @NES-xg5zg
    @NES-xg5zg 11 місяців тому

    Excelent video where can I find the rest os the series?

  • @josephakalonu1052
    @josephakalonu1052 5 років тому +12

    Hey Dirty, great job in simplifying this for me. I believe this is a 2x2 table. Thanks.

  • @syrishkousar
    @syrishkousar 2 роки тому

    Where is the next video regarding this?

  • @cryptonewbies5878
    @cryptonewbies5878 3 роки тому +1

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

  • @husseinalmussawi
    @husseinalmussawi 6 років тому +1

    Always you are the best
    Thanks from Iraq 🇮🇶 bro

  • @monika246
    @monika246 6 років тому

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

  • @tanushreegaur6245
    @tanushreegaur6245 6 років тому +1

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

  • @jango1489
    @jango1489 3 роки тому

    First time I felt proud of understanding stats.

  • @wasmasalah2365
    @wasmasalah2365 5 місяців тому

    I loved this. Thank you so much 💓

  • @drhasancb4
    @drhasancb4 Рік тому

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

  • @internationalEGY
    @internationalEGY 2 роки тому

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

  • @diares8397
    @diares8397 5 років тому +1

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

  • @nurula1783
    @nurula1783 Рік тому

    unbelievably simple. thank you so much!!

  • @enajranza7678
    @enajranza7678 3 роки тому

    Thank you Dirty! ❤️👍👍👍

  • @Tom-ff8cv
    @Tom-ff8cv 3 роки тому +3

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

  • @bernardogavidia2030
    @bernardogavidia2030 6 років тому +2

    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??

  • @tokyojon
    @tokyojon 3 роки тому

    Where is the video that goes thru practice questions?

  • @zafarullahchaudhary465
    @zafarullahchaudhary465 6 років тому +1

    The prayers have been answered. 👍

  • @FrenchTipsAndFrenchies
    @FrenchTipsAndFrenchies 4 роки тому +1

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

  • @cecilia76984
    @cecilia76984 3 роки тому

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

  • @AliHaider-kf7tw
    @AliHaider-kf7tw 3 роки тому

    Thank you very much for the marvelous help.

  • @kaderbare3466
    @kaderbare3466 Місяць тому

    So helpful ❤

  • @AJ-ul1lt
    @AJ-ul1lt 7 місяців тому

    Just want to say you're amazing!

  • @yougle101
    @yougle101 3 роки тому

    love this man. awesome method!

  • @sskfrey
    @sskfrey 3 роки тому

    Awesome 😎

  • @sandywilliams5212
    @sandywilliams5212 Рік тому

    This was great! Thank you!!

  • @sidrarasool7073
    @sidrarasool7073 2 роки тому

    Awesome..😇

  • @darinization
    @darinization 5 років тому +3

    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.

  • @MV-qw2dw
    @MV-qw2dw 5 років тому +3

    what happened to part 2 of the biostats video? I couldn't find it. Thank you dirtyUSMLE you are god send.

    • @DirtyMedicine
      @DirtyMedicine  5 років тому +1

      check the channel listing, it's still here

    • @MV-qw2dw
      @MV-qw2dw 5 років тому +1

      @@DirtyMedicine ok will do! Thanks

    • @yashpawate1306
      @yashpawate1306 5 років тому +1

      @@MV-qw2dw did you happen to find it?

  • @md.saifulislam679
    @md.saifulislam679 5 років тому

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

  • @marianasim1048
    @marianasim1048 2 роки тому

    What a GENIUS! thank you

  • @gezashignmekonnen7738
    @gezashignmekonnen7738 5 років тому

    Thank your clear and very important lecture

  • @kennethphiri4981
    @kennethphiri4981 Рік тому

    Awesome 11 minutes of my life

  • @vilfs
    @vilfs 3 місяці тому

    oh this saved my life. i can't thank you enough

  • @drrmk
    @drrmk 4 роки тому

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

  • @mabelore3355
    @mabelore3355 2 роки тому +1

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

  • @ponehbash719
    @ponehbash719 4 роки тому +1

    Thanks so much , I can not find part 2
    Which is very important
    Plz where is part 2?

  • @kedarpaul7904
    @kedarpaul7904 Рік тому

    Man, you killed it!

  • @drrktiwari
    @drrktiwari 2 роки тому

    Superb!

  • @migs6869
    @migs6869 2 роки тому

    Man you are a genius for real

  • @Cleopatra-en4ye
    @Cleopatra-en4ye 2 роки тому

    Thx a lot! you are perfect teacher!

  • @ZionhouseusChurch-ex3qk
    @ZionhouseusChurch-ex3qk Рік тому

    This is soooo good. Thank you!

  • @rekmasah
    @rekmasah 4 роки тому

    GOD BLESS U .YOU ARE AWESOME

  • @AnthonyL0401
    @AnthonyL0401 Рік тому +1

    If you are looking for seNsitivity ("N")
    TP/TP+F"N"
    If you are looking for sPecificity ("P")
    TN/TN+F"P"

  • @kwame9212
    @kwame9212 2 роки тому

    Amazing video!

  • @vivpapas
    @vivpapas 5 років тому +1

    This was extremely helpful. Thank you!

  • @drzeshan6156
    @drzeshan6156 3 роки тому

    You are amazing