Biostatistics SUMMARY STEP 1 - USMLE The Extra stuff
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- Опубліковано 24 кві 2016
- ESSENTIAL MATERIALS FOR USMLE STEP 1, 2CK, & 3 JOURNEY
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This is the second video summarizing the material for USMLE Biostatistics Step 1. Reviews NNT, NNH, ARR, ARP, Liklihood ratios, Hardy Weinberg. Good luck with Exam...
Feel free to email me at randy.neil8@gmail.com for notes or you can go to www.coastalmdlive.com/biostats/ to download.
Randy Neil, MD
INCREDIBLE VIDEO!!! Guys, listen up -- for my Step 1, Dr. Neil's videos were an absolute MUST. They single handedly got me through Biostats. You all NEED to watch the full set of his videos explaining the high yield principles that they're (likely) going to test you on. It's all HIGHHHHHHH YIELDDDDDDDDD
Thanks for the comment... Glad this stuff is useful for you.
DirtyUSMLE omg DirtyUSMLE you're here too? I love your videos too. Uhhhh doctors all around me. I'm in good company. Step 1 made easy!!!!!
Ok as you say Dirty, I trust you
OK my two fav UA-cam med school profs
best anime crossover ever
the Husain Sattar of Biostats, absolutely incredible
Now I know the video is useful with that comment... Now I will be looking at his website calling him "Randy Neil of pathology"... appreciate the feedback
24:00 although it yielded the right answer i think theres a mishap in solving this. Because--
we first calculate whats the chance of a healthy new donor. Thats 2q = 1/150. (Because q=1/300)
Now that healthy donor passing the recessive allele is another 1/2
chance from mom is 1/2
so 1/2 x 1/150 x 1/2 = 1/600. thats the proper way of solving.
Thank you for thissss comment I have been looking for!
Hello thnku for ur comment, but can u explain y u did 2q? thats the part i coudnt understand.
@@mrinalinibuddha9033 q is diseased allele frequency. Now the sperm donor must be heterozygous normal if he is healthy phenotypically but still carry a copy of diseased allele. From the equation the heterozygous carrier frequency is 2pq. In these types of autosomal recessive diseases, they say that we should always consider "p" in 2pq as "1".
So 2pq = 2 x 1 x 1/300 = 1/150
That means that the sperm donor's chance of being a heterozygous carrier is actually 1 in 150, not 300, because he only has to have 1 copy of diseased allele.
1/300 just mean that in a pool of 90,000 people's chromosomes, 1 in every 300 copies is a diseased copy.
The rest is just like explained on above comment.
@@banya159thx u so much
@@banya159 You're amazing. Thank you for this thorough explanation! I understand now.
where were u in my entire life , it is people like u who make this world a much better place
Thanks for comment. Glad it was helpful
can you do some ethics review please ?
ur like a god at biostats
Watched these videos the night before each STEP and it saves me every time. Got STEP 3 tomorrow and cannot wait to be done for good. Thanks for the free points Dr. Neil!
How was it!? I'm taking it this Thursday, scared to death
@@scarlettflaz7304 How was it?
Dr. Neil's Biostats videos have been one of my most important resources for step! Thank you for making things so simple for us to understand Dr. Neil!
2019 and Im watching for my step 3. Big Thanks Randy
Amazing videos Dr. Neil. You're amazing! I'd like to add a little trick to memorizing the +LR and -LR; Positive has P and sPecificity has P; Negative has N same as SeNsitivity and now you can remember which one to detract from 1. :D Once again, Thank you soooo much. You're a life saver.
Sahand, that’s a nice way to memorize... -LR, +LR... works every time as we say...
AND YO BOY is back for family medicine board certification studying. Thanks again!
One more test to go... CRUSH IT!!
Dr. Neil, thank you so very much for these incredible videos! They were instrumental in helping me prepare for a board certification exam. I would not have had the biostatistics understanding without having step and and extra stuff. Truly, thank you for your clear explanations, problem set up and dissection of problems to identify the target within the question. You're an amazing instructor.
Back at it again for Step 3! Great video, much appreciated Dr. Neil. The 50 people that disliked this video need prayer.
STEP 3...very nice. Make sure to look at the DRUG AD video... other than that... all the same.
@@RandyNeilMD same deal. Back for Step 3 - video is still just as money as ever. Appreciate you Dr. Neil!
FANTASTIC Way of seamlessly simplifying the material and explaining it in a easily re-callable way. Thank you SO much for posting these.
This is my first ever comment on youtube but these videos have been so helpful that I can't thank Dr. Neil enough. Not only are his videos amazing, but he also personally emailed me the page of notes within hours of me asking. I always thought I was bad at math but with just watching his videos one time, I was able to do very well on my class exams and i even became a TA for biostats! What makes his teaching so crucially different is the fact that he provides detailed explanations for the "simple" math after knowing which equation to use. It's simple if you have a system and he provides you that logical system you can use each time. Almost all other professors and videos speed through this part and skip steps. Thank you so much! If only we had him for he rest of the math then perhaps I could also become an expert cardio, renal, resp, and pharm calculations. #thedream
Sir, I have been following your videos since medical school. They helped me pass step 1-3, and lastly the ABFM. I am now a board certified Family Medicine doctor. Thank you God, and thank you sir for these wonderful videos you provide for us learners. Thank you for everything and have a wonderful day.
Thank you for the kind words... I appreciate you taking time to check in. Such a long journey, but so well worth it!! CONGRATULATIONS!! Stay in touch...!!
Dr. Neil is the best. 1) these videos are succinct and clear 2) if you email him he will happily share his awesome notes and he responds super quickly! 3) he cares enough to share his knowledge and answer questions for tons of strangers. Thank you Dr. Neil!!!
Omg I’m sooo thankful with you and your video this really help me to finally understand a better way to approach the statistics questions thanks a lot
Thank you for this valuable source. Biostats is such a important part of the Steps and you make it so easy to comprehend!!
Dr. Neil I don't even know how to begin to thank you. I had no idea what in the world I was doing on the biostats questions until I watched your videos. I have my exam next week and you're videos are gonna help make the difference. Thank you so much!!!
Amazing!!! Thank you so much. I now feel comfortable with biostats for the USMLE
Hi Dr Neal, thank you so much for sending the documents for these videos. you're awesome!
Thanks a lot! I have never seen anything as useful as this in my life. Wish you all the bests~!
Great videos Dr. Neil. Excellent Notes. Thank you so much for your hard work.
Dear respected Dr. Neil.
I cannot thank you enough for the very informative videos, and for your great kindness when I had the opportunity to communicate with you.
Thank you so much. God bless you and your loved ones.
Tawfik, Thanks for the feedback. Goodluck on the exam
Thank You Dr.Neil !!! For making this so easy and lucid
I am astonished by the way you have explained biostats in lucid manner..
I incidentally came across your video while I was struggling with stats...This is superb.
6 people disliked it, they prob found this video after taking the exam.
Thanks, no worries... Glad you found it helpful
Randy Neil, MD Honestly, I'been getting all of my U.W biostat questions correct just because of your videos. Thank you
😂😂😂
LOL!!!
😁😁
OMG i love you. I had a hard time understanding HW equation until now.
The fact that dirtyUSMLE is here and uses this proves the power of Randy Neil has to overcome Stats. Thank you both!!
this is the best biostats teaching video! (along with part I of this series) Thank you SO much!
where is part 1?
These videos are absolutely incredible! Thank you so much!!
God bless you Dr. Neil, thank you for helping us with your educational skills!
It's my pleasure...
Thank you very much for these videos! Especially the setup for test day at the end is especially helpful.
Pavranium, Thank you for taking time yo comment.
Life becomes easier when there are teachers like you. God bless you.
Haroon, Thanks for the kind comment. Goodluck on STEP1
Thank you soooo much Dr. Neil, these videos have been really helpful... I was struggling with biostatistics but with such fantastic explanation seems like everything is clear now. God bless you!
Glad you found the video helpful. Step 1 will be easier...
i think these videos are by far the most underrated video for usmle prep
Thank you so much for your videos and for understanding that we don't need to be 'biostatisticians' at this point ! very helpful .
high yield for Step 2Ck as well; thank you doc.
I never even wanted to touch Boistatistics portion and thn one day i found your videos. God Bless u brother there isnt a better way to explain these topics. Thank you so much
Studying for Step 2 and these videos have been amazing for reviewing Biostats. Thank you Dr. Neil!
Anytime,... I am glad they are helpful.
God bless u Sir , I am so happy to fund u ,I didn't know how could study this material to hard for me , but u in only few hours explaining all ,
I almost cried when you explained Hardy weinberg.
Thank you so much, Dr. Neil!! This is very helpful :D
This was an awesome video!! Explanations were perfect and so clear!! Thanks a ton!! Do you have a video on Chi Square, ANOVA, and T-Test by chance?
Wish I found these last year for Step 1. But thankfully I found them before Step 2!!! Bless you
Your videos should be included in FA’s section of High Yield Resources.
Absolute absolute boon to mankind.
Wow. Thank youu sooooo much for all the videos Dr. Neil.
Thanks these are the best videos on Biostats, Please do more !
you just made my life easier. a million thanks.
Great video! Simple way of remembering which likelihood ratio has the [1- ] in it is the NEGATIVE likelihood ratio has the [1-] in the NUMERATOR. N=N. Just thought I'd share. Good luck all.
or (N)egative LR has "1- in front of the Se(N)sitivity", whereas (P)ositive LR has "1- in front of S(P)ecificity"
u think i know what a numerator is?!
I understood hardy weinberg principle for the first time ever . Thank you sir for making it so clear .
Thank you so much Dr. Randy! Love how you made this available for free for us broke med students! Keep up the great work. Thank you for the notes :)
Get thru the STEPs and hopefully you won't be broke forever
@@RandyNeilMD you are the best !!
Incredible videos ! Thank you for the informative videos and notes! Very helpful!
By far the best explanations for biostats and HW! Thank you so so much- your students are lucky to have you!
Thanks Kate... glad you found info helpful
thank you .,,,,
your technique helped me a lot....i had problem memorising all those stuff...now it will get more easy for me ahead
I honestly haven't missed a Biostat question since watching these videos. I am due to take STEP this June and this is hands down the best Biostat teaching I've received. Thank you so much for these videos. I've shared with all my fellow students and blew their minds as well! I review the material on my own and then watch these videos after and it solidifies the understanding. MUST WATCH for all med students!!! Thanks again Dr. Neil!
Thanks for comment
Pure gold! Thank you, Dr. Neil!
Anytime....
I like how you showed us at the end how you'd handle STEP1. Excellent leading by example!
Glad it was helpful...
AMAZING!! please please it's a MUST watch video if you are stuck with the concepts of Biostatistics for step 1.
Thanks for sharing such an amazing video.
Rabiha, Thank you for the kind words and taking time to comment.
GOLD RIGHT HERE EVERYONE. MUCH APPRECIATED BRO!
Doctor Randy these lectures are on another level. we need content for step 2ck is a must.. seeing it in 2021
I'm trying to evolve into that...just need more time.
The best explanations ever, you can read and learn for hours in Kaplan books and lectures and never get it, with your two videos I got it all. Thank you.
Okil, Thank you for the feedback
omg!! thank you so much! the other older vids u made were gold but were way too basic for the current problems. biostats is def harder now on the exam thanks for making this I only get it when u explain it!
Agreed...the entire STEP 1 exam is a mindbender
the single best biostat video that i liked and found interesting . Great video...
i do appreciate. the best video, the best explanation. God bless you.
Dr. Zak
this is so amazing, DR Neil yo the best teacher ever..... May God bless you for teaching the children of this world
Thanks for comment
just found a new way to consume these great videos and would like to share it with yall: keep the video paused and try to solve the questions on ur own first - if u get stuck, play the video... its kinda like doing UWorld but the explanations are in video form and infinitely better :) and of course without saying... i never skip ads on these videos :)
Thank you Jerome for taking time to comment.
Thank you Dr.Neil
Best video , straightforward!
Glad it was helpful
thank you for the last 2 practice and review videos!
Glad you found them helpful
Gracias Dr. Neil.... awesome lectures & notes... they are super helpful :)
Thank you! Your videos actually helped apply all the biostats concepts..so helpful!
Thanks for the feedback... Goodluck on STEP exam.
Omg it is the best video on biostats ever. I have done kaplan qbabk uworld qbank and resource review and this video covers ALL the material
Really appreciate your help, so efficient!
Glad it was helpful.
Im in med school now and I think I love you ❤ Excellent videos. Not enough praise can be given. Found you through Dirty medicine who I also love.
Ha... Appreciate the kind words
Came back for Step 2. Have it in 3 days. Getting me my extra points, thanks so much.
You will do well...no worries
Great content. Dr. Neil will also share his notes upon request!
It is incredible how in less than 30 minutes everything can make so much sense! Im in shock. Where have you been my entire life?! hahaha Thank you so so so much!
Funny... I'll take it as a good compliment. Confidence is key to the STEPs. Keep moving forward...
This is the absolute greatest USMLE step 1 video on youtube.
Thanks for the feedback
Thank you so much for making these videos. They’ve helped me a lot❤️ . I was feeling so lost with statistics
Thank you Racquille for the kind comment.
The extraordinary USMLE channel for Behavioral & Biostatistics 👍👍👍
Thank you Princess Z... as always.
u are the best Randy and savior for biostats , never expected that biostats can be so easy!!
Glad it was helpful
these 2 videos are all anyone needs for step 1 bio stats, give ‘em a couple of watches before your exam and you’re good to go.
Appreciate the vote of confidence...
Thank u so much for your outstanding explanation , I found it so much helpful for me. God bless you
Thank you dr Randy Neil, step 1 on Tuesday now writing down all these formulas so that i can cram and write it down on my step 1 cheat sheet.
You will crush it... When you see BIOSTATS on your exam.. you will smile.
I have been studying bio statistics for more than 3 days now and couldn't understand anything.
i watched your videos once and boom i am in the game now ;)
I cant thank you enough, your videos helped me a lot in step1 and hopefully in 2 as well.Regarding the UTI and the ABC drug group question , you are given the AR and incidence of standard therapy so Incidence of exposed to the drug will be incidence of standard - AR hence 2% then instead of doing all the RR calculation if you know that if 2%of the ABC group is 29 how much will 100% be so 100*29 /2. Same thing actually but is much faster in the exam.
exactly , that's what i thought too
Thnx a ton buddy.. really needed this.. may God bless you
wow my STEP 1 is tomorrow and glad I ran into this!
what did you get on step 1?
Pure Excellence!!! THANK YOU!!!
Totally agree...Dr.Sattar of Biostats... Biostoma! Thank you, Dr. Neil, am set for biostat.. :)
Thank you for videos.they are incredibly helpful!!!!!!!!!!!!!!!!!!
That was absolutely helpful and much needed!! THANK YOU A LOT !!!
Appreciate the comment. Goodluck on STEP 1
Even after years he is generous enough to reply me asap and mailed me his notes.
NOTE: the first NNT problem in this video is similar to the one starting at 13:20, however, in the first problem, they had already given you the “Event Rates” in the problem so you simply subtracted Event rates in control from event rates in treated to find ARR. vs. In other problem however, you had to find the rates (%) using the elaborated ARR formula (I.e. c/c+d - a/a+b). Not sure if I am 100% correct here, but that is how I understood it. Happy to be corrected.
yes, you are absolutely correct.
Thank you coz I was confused for a minute
Thank you very much. God bless you
Great video thank you, interesting way to see things.
Thanks again Dr. Neil for making this monster tame...... Silile
Ohh bless you for adding Hardy- Weinberg
My dude is solving and correcting questions at the same time. 👍
Thats how we roll... :). Thanks for commenting
Awesome video! Thank you!
PERFECT!!
Really made it look very simplified
Awesome job
glad to have found this video,,, good to get a concise review for this stuff, especially when your not a numbers guy like me! cheers!
Thanks