Biostatistics SUMMARY STEP 1 - The Basics USMLE

Рет қаралды 1,570,379

9 жыл бұрын

ESSENTIAL MATERIALS FOR USMLE STEP 1, 2CK, & 3 JOURNEY
www.amazon.com/shop/randyneilmd.
Disclaimer: As an Amazon Associate I earn from qualifying purchases. There is no additional charge to you.
* The correlation coefficient (~25 min mark) isn't explained well and I acknowledge this. The main point to get across was the positive (line upwards to right) versus negative (line downward to right) directions. How tightly the dots correlate to the line is not explained in this video. +1 or -1 means the dots are "tightly" speckled on the line. Any number in between (ie. .3, -.2 etc...) and the dots are "loosely scattered". (see 2020 video for clarification)*
Feel free to email me at randy.neil8@gmail.com for notes or you can go to www.coastalmdlive.com/biostats/ to download. Good luck on exams!!
Randy Neil, MD

Пікірлер: 1 600

@dinowarrior2167 3 жыл бұрын

Why am I paying for Harvard's so called experts to teach me! You did more to show me how to set up a problem than my professor who wrote the book on biostats!

@RandyNeilMD 3 жыл бұрын

Ha... Thanks for the kind words. That's one of the kindest comments I could have gotten. Giggidee...giggidee...alright.

@flammo9 3 жыл бұрын

@@RandyNeilMD Lmao, heh heh, alright

@knzay 3 жыл бұрын

lol at this humble brag

@musiqal333 2 жыл бұрын

@@RandyNeilMD LOL at the QUAGMIRE reference!

@Biostatistics 2 жыл бұрын

😎

@DirtyMedicine 8 жыл бұрын

Incredible video my friend!! They should just play your videos at each school instead of hiring somebody to teach it worse than you can!

@RandyNeilMD 8 жыл бұрын

KZfaq Medical School....add in Wiki and we can make it a fellowship. Sounds like a plan...ha

@mamounmuhand7320 5 жыл бұрын

Mush thanks, mush love randy!

@aith7rios 5 жыл бұрын

I was just about to comment this exact thing. My school did a terrible version of this with 1 hr of history and people associated with stats.

@rittenbrake1613 5 жыл бұрын

DirtyUSMLE agree !

@theindianpatriotsbharat 4 жыл бұрын

@@RandyNeilMD Dear Randy I rarely reply but I must. Some years ago one of my friend learn something. I asked him how as in certain destination it was not available. He replied. KZfaq UNIVERSITY. Today its truly a fact. Some idiots ok lets make it gentle fools do use it for spasms and all sorts of rubbish. Other for such a noble purpose to educate or get educated. I appreciate ur kind effort. As I have just started but feel that I am learning.Thanks agin.

@nalennaicker 6 ай бұрын

3 years later taking Step 3 now and have come back here every time to watch this video on biostats cause it's honestly the best video out there!

@tamannakarim3976 5 ай бұрын

same here

@user-lo4pu4nc2v 3 ай бұрын

me too lol

@Awang333 5 жыл бұрын

26:20 FYI for those still watching this video, there is an error at 26:20! The Pearson correlation coefficient is D -0.2 because the dots are scattered with a "weak negative correlation". Answer choice E -1.0 would have all the dots in a straight line with a "strong negative correlation". Check First Aid 2019 page 263 for more information

@doomsdayknight2229 5 жыл бұрын

Awang333 thanx man. You got it 👍🏻

@JosephReinshagen 4 жыл бұрын

Thanks!

@alirahman8964 4 жыл бұрын

excellent error pointed out. i was about to add this. the wider the spread out of points the weaker the number is and it has nothing to do with the slope.

@UnknownStar08 4 жыл бұрын

@@doomsdayknight2229 can you explain the RR ques 24:24. plzz

@KoreanPenda 4 жыл бұрын

@@UnknownStar08 Relative risk is for cohort studies. We know this is a cohort study because we have an outcome of prostate cancer and are looking retrospectively to see whether an exposure had some influence in occurrence of prostate cancer. In this case, the exposure is presence or absence of children. With relative risk, you are looking at the risk of something between two groups. Because we are interested in comparing prostate cancer risk in men without children to men with children, we look at the risk of just prostate cancer in men without children (what we are interested in) and then compare to (divide by) prostate cancer in men with children. Risk of prostate cancer in men without children: Prostate cancer and no children (80) divided by total men without children (1000) Compare it (divided by) by the risk of men with prostate cancer with children. Risk of prostate cancer in men with children: Prostate cancer with children (220) divided by men with children (1500) So it should look like: Risk of prostate cancer in men without children (80/1000) / (220/1500) Risk of prostate cancer in men with children.

@kazijennah 2 ай бұрын

8 years ago , and 8 years later watching it Gold will always be Gold

@RandyNeilMD Ай бұрын

Works well for insomnia as well... :)). Thank you for the kind words.

@ghazifaisal6594 7 жыл бұрын

You are the pathoma guy of statistics.....thanks a lot Dr...your style is magnificent

@RandyNeilMD 7 жыл бұрын

That was perhaps the best compliment I have ever received. Glad videos were helpful

@ghazifaisal6594 7 жыл бұрын

+Randy Neil, MD......You deserve it.....successful teaching is a talent and you're talented

@storylava9603 7 жыл бұрын

They were helpful man.

@RandyNeilMD 7 жыл бұрын

Thanks. Appreciate it

@komalmalik634 6 жыл бұрын

BEST!

@sorayabascoy5838 7 жыл бұрын

I usually do not comment on KZfaq videos, but I couldn't resist. I am currently studying for step 1 and I've understood something that had been taking me forever in just half an hour of watching your videos. Heroes don't always wear capes. Thanks so much!!!

@RandyNeilMD 7 жыл бұрын

Thanks for the kind words... too funny. Very glad it was helpful. After you crush STEP1..check back in.

@sorayabascoy5838 5 жыл бұрын

@@RandyNeilMD Just checking in! Did well on both step 1 and step 2 ck with your help. Currently applying to med/peds and having a pretty successful application cycle!

@snekjuce 4 жыл бұрын

@@sorayabascoy5838 holy you actually checked back in. dope.

@quasimoto106 4 жыл бұрын

@@sorayabascoy5838 so you didnt score that high?

@rosyreverie 2 жыл бұрын

@@quasimoto106 med/peds is combined internal medicine and pediatrics and very competitive, so they must have scored pretty high

@ApplyingForResidency 2 жыл бұрын

I just took my exam yesterday, answered 99% of the questions from this and the part 2 video alone! Can’t thank you enough for making this!

@RandyNeilMD 2 жыл бұрын

PERFECT!!

@maybeokie 2 жыл бұрын

where is part 2?

@mhdwahoud 6 ай бұрын

@@maybeokie kzfaq.info/get/bejne/jLN5bLims9fTd30.html

@georgessadek 7 жыл бұрын

This video (and the accompanying one), is a MUST WATCH for anyone preparing for step 1! Simplified and to the point. Thank you Dr. Neil!

@gaupatel1637 6 жыл бұрын

Dr. Neil is the MAN! Thank you for taking this extremely dry topic and making it easy. I've studied it for step 1 and step 2 and could not bear to do it again for step 3 but his approach has brought much needed relief. Also very impressed with his response to my request for a copy of the notes as he is no doubt busy with residency. Thanks again, doc!

@yusufshaikh4942 5 ай бұрын

3 months of UW and all I really needed was 20 mins. You're a God Sent savior. God Bless 🙌

@RandyNeilMD 4 ай бұрын

Perfect. That's what the goal is. "There's got to be a better way..."

@justinhills9125 6 жыл бұрын

Dr. Neil's biostatistics review videos are an absolute must-watch for Step 1 studying! These lectures will give you an approach that you can consistently use to answer questions correctly. Forever grateful!

@brookemasonwilson 8 жыл бұрын

Thank you for posting your videos! I'm one of those non-traditional student and haven't seen or attempted any stats questions since the mid 90s. I would start sweating as soon as I saw a biostats question on any of my practice blocks. Originally, I would pick an answer and move on to the next question. I've stopped skipping them, and they no longer send into the panic zone. THANK YOU!

@tafwolf 4 жыл бұрын

Hands down the best review for biostat and epidemiology for USMLE. Short, sweet and to the point. Thank you so much for helping us all out. Learned way more in 30 minutes than hours of lectures at med school

@ghazan123 7 жыл бұрын

these videos are lifesavers . anybody weak in biostatistics MUST do them . thank you so much. emailed him for the notes and he replied so quickly with them . thank you so much again

@fatimaqamar3359 6 жыл бұрын

I am grateful to a random screenshot of a random post about biostat on fb where a guy recommended you. Cant thank you enough for making difficult concepts stick so easily. God bless you! And the way you have possibly responded to hundreds of people with your notes, I really appreciate it. :) I couldn't help but utter a prayer for you. Stay blessed.

@Ajs00 7 жыл бұрын

I passed my nbmes because of your videos. I improved my biostats and epidemiology sections tremendously. It made a difference in me passing or failing. Thank you sir you are great!

@RandyNeilMD 7 жыл бұрын

You have to love it when it all works out perfectly. Glad it was helpful.

@riccikalaya4614 3 жыл бұрын

I return to this video annually for step 1, step 2 and now step 3. You are the best!

@RandyNeilMD 3 жыл бұрын

CRUSH STEP 3!!!

@EGoris-ph5oq 6 жыл бұрын

This is the best Biostats teaching video I have ever seen! I have literally watched it over 20 times! THANK YOU SO MUCH!

@trietdo2144 4 жыл бұрын

one of the best reviews of biostats for step 1; quick, efficient, and to the point. thank you!!

@moserrothchoco 9 ай бұрын

Came here for step 1 and step 2, back for step 3. THANK YOU SO MUCH FOR ALL OF YOUR HELP!!!!!!

@RandyNeilMD 8 ай бұрын

CRUSH IT!!

@ArzooSadiqi 8 жыл бұрын

This is one of the best teaching videos I have watched on KZfaq! Thank you so much :)

@RandyNeilMD 8 жыл бұрын

You are the teacher with the million subscribers... So I am humbled. Thanks for the comment

@ekimzaga 6 жыл бұрын

For biostats, it is the best video hands down :)

@stevemarabondo5941 6 жыл бұрын

This is gold! Dr. Neil is a great teacher who succinctly and effectively simplified a very confusing subject. Can’t recommend enough!

@whitneys1199 5 жыл бұрын

Not all teachers are gifted in the art of teaching. Dr. Neil is truly a gifted teacher. Thank you so much for these videos!

@JooAnnna 3 жыл бұрын

I have been here for my step 1, step 2 CK and now step 3. I hope you realize how much value you add to people's life. Thank you isn't enough.

@JooAnnna 3 жыл бұрын

You can show appreciation by letting the adds run guys, Goodluck everyone.

@RandyNeilMD 3 жыл бұрын

Glad it was helpful. Be sure to take a peek at DRUG AD video for STEP 3...

@JooAnnna 3 жыл бұрын

@@RandyNeilMD I sure will, thanks again.

@christyyjbw 2 жыл бұрын

I was here for Step 1, for Step 2, and now again for Step 3. Dr. Neil, you the best

@RandyNeilMD 2 жыл бұрын

Cristina... Thank you for the kind comment. For step 3, make sure to review DRUG AD video...

@rubabsyed2291 Ай бұрын

I remember watching these for Step 1, and here I am back again a year later for Step 2. Can't beat your videos for stats, thank you so much!

@RandyNeilMD Ай бұрын

Thank you for taking time to comment... Videos will work all the way through board certification.

@GoogleAccount-nm3mf 5 жыл бұрын

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!!!

@CyclingSJH 7 жыл бұрын

Saved, liked, favorited, shared, appreciated... Can't thank you enough, Dr. Neil.

@shiv634 5 жыл бұрын

You've cured my biostatistics phobia, eternally grateful.

@muhammadsaadmalik7909 4 жыл бұрын

Thank you so much Dr. Neil! You’re a true gem! We need more selfless people like you in the world!

@niharikasaraf3506 Жыл бұрын

I did not believe it would be possible to simplify Biostats this much. I am in awe. Thank you so much for this one 🙌🙌🙌

@ryankelly8077 5 жыл бұрын

This is the best stats vid I’ve seen on KZfaq for med school students

@akashangya 8 ай бұрын

Having my step1 tomorrow…came back just to rewatch one last time.. thank you very much. ❤️

@RandyNeilMD 8 ай бұрын

STAY CONFIDENT!!

@renzo3dr 5 жыл бұрын

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!

@kiranv2525 5 жыл бұрын

I've got an exam tomorrow and I cannot begin to tell you how thankful I am for this video. Perfect for a quick revision.

@ganeevsingh5466 Жыл бұрын

Just went through the whole series having never read Biostats all through medical school and even kept avoiding it for step, I can easily conclude that Dr Randy is a legend.

@RandyNeilMD Жыл бұрын

Ganeev, Appreciate the kind words...

@medically_high3629 6 жыл бұрын

i'm half way through the vid.... and mannnn i LOVE u for this... u r the best.. my step 1 is in few days.. and i'm doing my final revisions... and i needed this quick source for tackling the high yield stuff.... i wish u all the best

@funsize198 5 жыл бұрын

Ran into this video by chance. Currently taking a break from Step 1 studying and was looking for youtube vids of dogs to distract me and somehow got a suggestion of this video. You have no idea how helpful you have been to me. You make this so simple for me to understand. I studied this section for about a month and still kept missing questions because I didn't quite understand it from FA. You're awesome.

@user-bn1qu5iz2w 4 жыл бұрын

I’ve never understood biostatistics before.. I’m glad I took the time to go over all your videos Thank you Dr. Neil, you’re a LEGEND ❤️

@gamerguy765 7 жыл бұрын

Math is so much easier to understand when someone walks through the problems with you. This vid has been shared throughout our class as the quick stats review. thank you very much.

@RandyNeilMD 7 жыл бұрын

Glad it was helpful...go crush the STEP

@nirakib6744 6 жыл бұрын

these videos are soooo goood and to the point. i even recommended them to some test takers.You are helping out many examinee God bless you.

@MEEDOFOX 6 жыл бұрын

best biostat USMLE video ever. everything is clear and easy. thank you very much. you just made my life easier.

@35Vane 5 жыл бұрын

This is, hands down, the best video Ive seen about biostat. I watch this vid and part 2 before every single NBME, and it really has helped SO MUCH to answer nearly every question. Thank you so much!

@adminasylum1304 Ай бұрын

Same here

@JudetteD 3 жыл бұрын

why staying hours in my class to struggle to understand what you make me understand in *30 minutes* ? Man, GOD BLESS YOU!!! this video should go around the world for saving millions of students lives!!! TKU!!!

@RandyNeilMD 3 жыл бұрын

Thank you for taking time to comment and give feedback.

@hibahkhan3575 7 жыл бұрын

I somehow stumbled upon this video by chance, and it was like a gift from God. I kid you not, Dr. Neil's videos for Biostats are a God send for those studying for step 1. His videos helped me understand the First Aid portion better and apply them to Uworld questions. On top of that I emailed him and within a day he was kind enough to send me his one page notes, thank you Dr. Neil!

@RandyNeilMD 7 жыл бұрын

Randy.neil8@gmail.com. Just email me. I'll attach a copy

@waltercisneros7498 5 жыл бұрын

can i have one please? walcis001@hotmail.com .... thanks in advance

@sabaali457 5 жыл бұрын

I can't tell you how much this has helped me on the questions I was missing!! THANK YOU SO MUCH!

@tangogog 3 жыл бұрын

Still watching to refresh! You are an excellent teacher, Dr. Neil! Thank you...

@wadelsheilh7220 7 жыл бұрын

well i can say this is the best biostatistics video I've ever seen its PERFECT Good Job and i really appreciate ur efforts

@tmandudeguy 8 жыл бұрын

Thank you so much buddy. I don't think you realize how helpful it is to just have someone draw this out with you. Ofcourse its all in FA but having it in context is invaluable. I think someone mentioned it already but I think the only things you're missing is RRR, ARR, NNT and NNH. But they're pretty self explanatory.

@RandyNeilMD 8 жыл бұрын

Glad you found it useful. Good luck on the Step exams...

@shawnjonas7622 5 жыл бұрын

Fucking hate when someone uses the word Buddy!

@NIKCANFLY 4 жыл бұрын

@@shawnjonas7622 Chill buddy

@rafayrizwan6122 4 жыл бұрын

@@shawnjonas7622 fuck u BUDDYYYYYYY

@Sahgee 4 жыл бұрын

This was such an amazing help. Very comprehensive especially before my test on Monday. Wish me luck 💜

@adotiwal 7 жыл бұрын

Dr. Neil, thank you so much for making these. Just going through these once has made a big leap in my UWorld score.

@dvshrai 7 жыл бұрын

I don't know how somebody can dislike this video. Phenomenal explanation. I leared this and passed step 1, and CK. Now at the time of step 3, found your video and it became so easy. I would really appreciate if you could make a video describing step 3 specific content.

@RandyNeilMD 7 жыл бұрын

Thanks for the kind words... Step3 only has biostats on day1. I'd say it roughly the same concepts but they have multiple drug ads which are hard to study for... if you know the basic concepts you will do well.

@danielam6521 8 жыл бұрын

The best video ever about bio statistics. Thanks Randy

@RandyNeilMD 8 жыл бұрын

+Daniel AM Perfect...do well on exam

@jyothiswaroopb007 5 жыл бұрын

High yield biostatistics lectures I have ever found . With 'the' most enthusiastic teacher and teaching style its like a cakewalk in remembering most difficult and confusing topics of biostatistics (nightmare) of medicos . After going through these videos I was able to solve problems within no time. I recommend these series for everyone . Loved it . Great explanations. Your videos are awesome. Thank you very much Randy .

@walkaboutinside 10 ай бұрын

Thanks for explaining so clearly. I have seen experts fail in explaining this. Brilliant !!!

@indiramassie6237 5 жыл бұрын

You are amazing!!!!!!!!!! May God bless you and your family 🙌🏾🙌🏾😊😊

@carolineheres3450 3 жыл бұрын

taking step in 48 hours and this just saved my life

@RandyNeilMD 3 жыл бұрын

Keep Us Posted!!

@lobofitness6997 Ай бұрын

I appreciate how you go through all these questions and explain them so well. Never before had I understood so well, Thanks so much!

@RandyNeilMD Ай бұрын

PERFECT!!

@fashionfruit99 3 жыл бұрын

Thank you for the straight to the point, no nonsense, simplistic way of teaching a subject that a number of medical students find daunting!

@RandyNeilMD 3 жыл бұрын

Fasion, Glad it was helpful. Thank you for the comment.

@trentjohnson9407 6 жыл бұрын

this is an amazing video! I understand things a lot more because of your quick associations. It'd be great if you could post a pdf of the examples. Thanks a lot

@offlineaccount9974 5 жыл бұрын

2019 and still using the Lectures. Thanks a Lot Doctor Neil.

@ahmedgomaanowar9149 3 жыл бұрын

I had watched them a year ago when preparing for step 1 , and now watching it again when preparing for step 2 . Thank you Randy, God bless you , Keep going!

@RandyNeilMD 3 жыл бұрын

Ahmed, It should work for STEP 2 as well...

@andrewcarey283 4 жыл бұрын

Back here again for Step 3. I've used these videos for all three USMLEs. Always high yield. Thanks, Dr. Neil.

@dianadelvalle161 3 жыл бұрын

OMG, my brain just clicked. Thank you so much! This was amazing!

@RandyNeilMD 3 жыл бұрын

You are moat welcome.

@salvadorbl2-188 5 жыл бұрын

Taking Step 1 tomorrow! This is the last video I will be watching! Thank you Dr Neil! The Pathoma of biostats!!

@jacobgiles9283 5 жыл бұрын

Tyler Lorenzo how’d you do?

@salvadorbl2-188 3 жыл бұрын

@@jacobgiles9283 Sorry it took so long to reply. I did well! I'm just now starting residency

@archblade12 5 жыл бұрын

Best explanation of biostats that I have gone through! Honestly the Pathoma of biostats. Thanks again for the notes Dr. Neil!

@np4829 5 жыл бұрын

Amazing work for step 1 and now back again for CK. You are the MAN

@ellieok6503 3 жыл бұрын

I can’t thank you enough. Not all heroes wear capes 😭🙏

@RandyNeilMD 3 жыл бұрын

Thank you Ellie. Glad it was helpful.

@suhaabu-shamla9800 3 жыл бұрын

What such a masterpiece is this !! thank you so much .

@RandyNeilMD 3 жыл бұрын

You are most welcome.

@MademoiselleGigi24 6 жыл бұрын

Thank you Dr. Neil for these amazing videos!! I take step 1 in 10 days, and somehow I’m actually confident with biostats thanks to you :) And thank you for emailing me your notes!!

@danielcastilo1840 7 жыл бұрын

Thank you for putting this video out- its both comprehensive and easy to grasp.Once again ,thank you.

@saeedkarajah9745 2 жыл бұрын

Thank you for the great videos Dr. Neil. I think the question at 6:00 is actually a retrospective cohort because the two groups were seperated based on the risk factor (being old or young) not the outcome (high or low score)

@sahilkessrani5810 6 ай бұрын

yes it should be cohort if we compare between the low scorer and high scorer and see in them how many are above 50 Yoa and below 50 Yoa than it will be case control

@thuyvyle9556 8 жыл бұрын

You made it sound so easy! Thank you!!

@RandyNeilMD 8 жыл бұрын

Perfect...good luck with test

@camillemd5262 8 жыл бұрын

Dude! Where have you been?!! This is the only presentation that finally makes Biostats understandable. You really need to teach; and I do not tell many people that ever. It is a gift. Thanks so much!

@RandyNeilMD 8 жыл бұрын

Too funny...

@annchen8217 5 жыл бұрын

No one teaches better. Hands-down the best tutorials on biostat!!

@37VQV 3 жыл бұрын

I used this to study for biostats for Step 3, worked perfectly. Day 1 of Step 3 has a decent amount of Biostats, like 4 - 6 q per block, but this video will cover like nintety percent of what youll need

@RandyNeilMD 3 жыл бұрын

That's perfection!! Glad to hear it worked well for you.

@ashimadogra4523 3 жыл бұрын

@@RandyNeilMD I am taking my Step 3 in 2 days. And I have a degree in Biostats from Boston, but I STILL came back to your video for that high yield revision! You're AMAZING.

@RandyNeilMD 3 жыл бұрын

@@ashimadogra4523 Thank you for the feedback... CRUSH the STEP 3... Biostats was only on Day 1 from what I recall... pretty much teh same as STEP 1 and 2... Stay focused. Stay confident...

@ashimadogra4523 3 жыл бұрын

@@RandyNeilMD Aww thank you so much! You're the best!

@adoctorskitchen7105 6 жыл бұрын

You are amazing......magically amazing

@nighthawk358 5 жыл бұрын

This is the first time I actually understood Biostats. Thank you soo much

@dr.p2992 4 жыл бұрын

Dr. Neil has a way of explaining this complicated subject in such an easy and systematic way! I listened and recreated his visual aids...I was able to improve my scores dramatically!

@anabelruiz8041 6 жыл бұрын

Thanks randy

@jasonliao7658 7 жыл бұрын

Error at 26:20: R (correlation coeffficient) is measure of linearity not slope. Correct answer should be D (-0.20), not E (-1.0)

@umaumz9270 7 жыл бұрын

Can you please clarify the answer please, as to why it is -1.0. Thank you in advance.

@kylebarner681 7 жыл бұрын

I agree with this. The correlation coefficient should be how close the dots are to the line...not the slope of the line.

@DOC_951 7 жыл бұрын

I agree, a -1.0 would be a perfectly straight line with the dots, which clearly his example didnt have that distribution

@wakeguy205 7 жыл бұрын

Yea, this is incorrect. Closeness (of r) to 1/-1 is how well the line fits, NOT slope. Additionally, the way you calculate ARR (in the next vid) is different than what first aid says.

@SaSpursFan 6 жыл бұрын

i came to comment this

@prajayrathore2713 6 жыл бұрын

Its very useful for boards prep. I can't imagine doing biostats without it. I would definitely recommend to all of my friends and collague. Thank you Dr. Neil.

@walichowdhury370 7 жыл бұрын

Your style of teaching seriously reminds me of Dr. Sattar from Pathoma. The way you simplify things I can never forget them. Thank you so much for this!

@spicymocha9517 6 жыл бұрын

13:40 would A and B also be 100% sensitivity?

@andrewcarey283 7 жыл бұрын

This is all very high yield for the purposes of examinations.

@RandyNeilMD 7 жыл бұрын

Appreciate the feedback

@andrewcarey283 7 жыл бұрын

Just took Step 1 last week and your videos covered EVERY SINGLE biostats question on my exam. Thanks very much.

@wetinbidat 6 жыл бұрын

Thank you a million times! You've made these complexities so awesomely simple to understand. Than you again!

@danshost5817 5 жыл бұрын

Thank you so much! This is very helpful! Especially, lowering and raising the cutoff points (B->A, A->B)

@makeupjunkie5066 5 жыл бұрын

Thank you so much for the video, it's very helpful. But is there a typographical error when calculating the Relative Risk? As far as I understand it, it's (A/the horizontal total)/ (B/horizontal total). The denominator is the sum on the far right side not the sum at the bottom of the punnet square.

@lindseyladd9822 4 жыл бұрын

His table is set up differently. The question is also worded so that it basically asks for the inverse of the relative risk.

@nawzirilarazan8831 8 жыл бұрын

Seriously? I hope you having a teaching gig somewhere and that they're paying you ALOT of money.

@RandyNeilMD 8 жыл бұрын

I wish...glad it was helpful.

@thinkerbee8514 6 жыл бұрын

Thank you again for your time and posting this video, Dr. Neil!!! You're awesome!

@es-iic2897 3 жыл бұрын

I highly recommend this video as a primer for people who struggle or want to refresh their basic biostats. Well done, Dr. Neil!

@RandyNeilMD 3 жыл бұрын

Thank you for the kind words

@adriencm9025 Жыл бұрын

Thanks for this awesome video! Question: at timestamp 6:43 wouldn't this study be a retrospective cohort, not a case control? The "exposure" is older age and the researchers started with two groups, exposed and not exposed (older and younger). Then they looked to see the outcome (high or low Step 1 score). Or is this not right? Thanks!

@dilyskc3176 Жыл бұрын

I agreed

@sahilkessrani5810 6 ай бұрын

agreed bro! I was also thinking same

@avilashmandal151 4 жыл бұрын

6:12 We are obtaining the Results(i.e. the outcome/ reality/ disease ) and the Age( exposure/ risk) at the same time so why is this not a cross-sec study? Please explain this Sir. I am so confused now.

@lisas.3530 3 жыл бұрын

I agree I thought this was cross-sectional.

@sheenugupta3126 3 жыл бұрын

In cross sectional we just determinate the incidence, like people who have age >50... & people who scored >200. We do not establish association. Here we are trying to answer the question "is there an association between old age & low scores?" Got it??