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appreciate your work

Thanks prof

THANK YOU!

Love you

Thank you , this was really helpful

bestt

Thank U so much ❤❤❤❤❤❤❤❤❤❤❤❤❤

thank you so much!!

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waow no wonder animal agg is winning the brain wash game,, these guys are so insanely powerfull,, love hearing the brilliance on how they manipulate studies (collin campbell video called (why focusing on single nutrient is a scam ,, ONE OF MY TOP TOP TOP favorite videos on vegsourceyoutube,, are we design to eat meat by milton mills,, and perils of dairy by john mcdougal,, and so many others

Best explanation!

I think the confusion between retrospective cohort studies and case-control studies arises because with both approaches, at the point of setting up the study, cases (those with the disease) exist - right now. A retrospective cohort study is like jumping into a time machine and assembling the exposed and non-exposed groups and following them forwards to the present time (when some have become 'cases'). Since we don't have a time machine, historical records are used in RCSs. When assembling the two groups, it is of course critical that we don't know which ones went on to become the present-day cases.

Excellent

Finally understood thank u so much keep it up🔥

Thank u so much

short and simple

Perfect... just.. so perfect!

Thank you!

Thanks!

I've watched nearly every one of your videos Prof. Smith. I love how they're depicted with simple diagrams - fancy videos can be so distracting. I also loved your clear and conceptual explanation of basic concepts - thank you so much. I hope there's more to come!

Great videos!!

Very helpful!!

Succinct yet informative

Easy and straight to the point

This really helped! I like how you repeated what exactly the curve meant.

thank you! this was very useful

Thank you so much dude I spent so much time trying to figure this out and this is like the most clear explanation for it

Thank you for making this easy!

Good

wow <3, i love those drawings, thats so original and genuine

Thank you (: 🙏

Thank you so much!

Superb ❤

th-cam.com/video/8lJ15Sv3c8Q/w-d-xo.html

i got it easily so i start to doubt it🤣

Thank you so much

Why is the SE calculated from 1 sample a good approximation for the spread of many means of hypothetical samples (samples that we don't take in reality?)

very well explained

Well explained

Saw a dozen full of videos...and finally got my doubt cleared from this one...just awsm

How to calculate person-years if a person has less than one year follow-up?

So helpfull video😊

The best!❤️

Very straight forward and easy to understand. I have the general concept now. Thank you.

How did you calculate the incidence rate in the unexposed group?

Thank you for your videos

Very helpful, thanks a lot!

Thanks for this useful content, Prof. I have a question, does it means that research question is to make a hypothesis on the research? I hope you'll be willing to respond this question 🙏 Thanks in advance, Prof. 🙏

Very well explained

so how will you differentiate with case control? both retrospective and case control looks to be the same? both look at past records and both have two groups ,exposed and non-exposed