Biostatistics: Evaluation of a Diagnostic Test | USMLE Step 1 Crash Course (FA 2020)

Welcome back to another biostats video! I'll be covering Sensitivity, Specificity, Positive Predictive Value, and Negative Predictive Value. If you happen to be interested in learning more about likelihood Ratio, please watch the following video I made with my colleagues: • Biostatistics - Likeli...
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📝 Content:
00:55 Sensitivity and Specificity
09:20 Postitive and Negative Predictive Value
13:48 Altering the Cutoff
📝 Notes/Errata:
1) 05:17 "and if specificity is everyone WITHOUT the disease, how is it etc..." I accidentally said "with" instead of "without".
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🙋🏻‍♂️ Who am I?
I'm Khaled, a final-year medical student, and I make videos on quite a few different topics within the scope of medicine such as reacting and breaking down medical shows, studying for exams, discussing important health issues, etc... I hope that my videos help you in any way, shape, or form and that you enjoy them regardless of your background.
Medicine is quite the challenging topic, but I don't see why we can't enjoy it together!
Disclaimer: The information and education material contained herein is meant to promote the general understanding of medical topics by healthcare professionals and related parties. Such information is not meant or intended to serve as a substitute for a healthcare professional's clinical training, experience, or judgment. For patient’s care or regarding your own health please consult your doctor or refer to the most recent evidence based practice.

[@saras3632]

Thank you so much. titanic, romeo and stars are an interesting way to try to understand the specificity and sensitivity.

[@bapanapallilokesh]

Thank you so much for the explanation. ❤ loved it.

[@bansaripatel593]

May you achieve all the success you deserve.... I was struggling with Biostats n my anxiety was on peak.. Your videos are so so helpful.... Genuinely Thank you so so much....

[@Khalemedic]

You’re most welcome! Thank you for your kind wishes!

[@ankeetaroy7192]

Please make more such videos. Beautifully explained

[@drismail469]

Thank you for your effort

[@swaroopkumar9069]

thankyou so much sir, with the help of your videos I can finish Biostats in 2 days.
Kindly do videos on Ethics & Psychiatry

[@rawanm6399]

Keep going 🎉

[@faizanshahzad8598]

Great video sir! I wish you more success

[@Khalemedic]

Thank you, Faizan!

[@mohamadelmahdi4450]

thank you man a lot

[@BrunoSimioni]

Thanks! You just helped me to understand credit risk analysis :)

[@Khalemedic]

You’re most welcome, Bruno! I’m happy you got it!

[@bigboss8622]

credit risk ?

[@sanadal-soub540]

amazing

[@naseebullah724]

Best explanation. Thanks a lot...

[@Khalemedic]

Thank you! I'm glad you liked it!

[@tasbeehelgohary1618]

You are amazing, keep going 👏👏

[@Khalemedic]

Thank you, friend! Glad you liked the video! 🙏🏼

[@niveditasingh9819]

Hi .. I have one question . In roc curve if they are asking most predictive test what does it mean