USMLE STEP 1: EFFECT MODULATION vs. CONFOUNDING; t-test, ANOVA (Simplified)...

ESSENTIAL MATERIALS

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USMLE STEP 1: EFFECT MODULATION vs. CONFOUNDING; t-test, ANOVA (Simplified)... This video reviews basic concepts for biostats for USMLE STEP 1 exam. Hope it is helpful.

[Kelvixm]

00:02 Understanding confounding and effect modulation in medical studies.
01:55 Understanding confounding vs. effect modulation
04:01 Smoking can affect the outcome, exposure, or both, impacting the study findings.
06:08 Confounding affects both exposure and outcome in research studies.
08:19 Understanding key methods for comparing means in research studies
10:11 Chi-square is used to compare proportional data
12:05 Understanding analysis of variance and t-tests
14:06 Understanding effect modulation vs. confounding
15:59 Understanding Number Needed to Treat (NNT)
17:38 Understanding of absolute reduction and number needed to treat
19:21 Effect modulation vs. confounding in research.

[dropapebble]

How is there not millions of views on this. I tried EVERYTHING to understand and remember biostats. THIS DID IT FINALLY.

[jameelashkar]

Hi everyone, indeed dr randy neil did come down from heaven ! May God bless him on this Friday where ever he is now ...his unique flavor in teaching touched many dr's preparing for the usmle ...

[theslyweasel]

Man, these videos are gifts from the divine. Thank you, Dr. Neil!!

[DrPilot]

Thank you, SIR!!!!
future doctors owe it to you.

[diegofelipesandovalrodrigu]

Thanks Randy.
Just to clarify (min 13:30):
if the CI does not include zero is significant for a mean value.
If CI does not include 1, is significant for OR or RR. : )

[pulmi]

Thanks, Dr. Neil for your dedication and help to all of us!

[claraandala]

Thank you Dr Neil. Im in my first semester of my post grad studies Epidemiology and Biostatistics. Am currently learning Biostastics online (due to the pandemic) and it was just terrible. I couldn't nor understand grasp the calculation concepts at all. I came on YouTube to look into Biostastics for dummies but came across your channels. Aren't I glad I did! I have been online all day going through your videos and I can say am confident that I can pass my biostat exams. Within a day am now very conversant with how to handle questions starting form the question part, before going through any long prose. I now know what formula to apply in a, majority of the questions be it NNT, PPV, LR, AR%, when to draw the chi square among others. Thank you so so much. Your videos are extremely helpful. If you could do some videos on Correlation coefficients, confidence intervals and hypotheses, that would be great. So far, am grateful. I have a few questions to share with you for the purpose of helping me and the rest here learn better too. I'm not sure how to do so though. TIA

[talhazafar]

Going through your videos my step 3 is Just a week way.. your videos have made these calculations so easy to understand.. thank you very much and i hope i score well

[mitsukislife]

Thank you so much. Tying to beat this beast of an exam is not easy, so these videos are a lifesaver!

[yashpawate]

Gift from God. Thank you for making these concepts simple!!!

[Peaceistheanswr]

Dr. Neil is key to success. Thank you for everything you do and for posting these videos. No test prep company or any professor ever explained this to me. You are a true gift to the world. Thank you for sharing your knowledge.

[wafiabdalrahim]

just found ur videos one month b4 my exam and stats were my weakest subject and its the oppsite now <3

[danieldonascimentoaraujo]

Great, short and succinct. Thank you, Professor Neil!
Amazing Video for Step 2 CK!

[kavy]

I always watch your stats videos and genetics video before y FRCOPH exams. They are such immense help. I cant thank you enough. sending you lots of virtual flowers and wishes.

[thirteenbee]

You are the best out there, Dr Neil. Stay awesome ⭐️

[Knstar]

Thank you so much another extraordinary video on biostatatistic, you are remarkable Dr.neil.

[ramseyalzahrani]

why for the last question when the equation was control - treatment, you put the new treatment data - the placebo ?

[asmaadalhi]

The best way in learning is to solve questions! Thanks for making it easy

[sarakhm]

Thanks Dr.Neil. I have tried alot sources but yours was best one.