Introduction to experiment design | Study design | AP Statistics | Khan Academy

[@languageandmana9255]

Khan Academy,you are amazing! You are improving and saving my educational life as a medical student. Alll of the websites which have been designed for medical students out there are NOT free and as a person who lives in Iran, I can't afford even 20 dollars! Every one dollar is equal to 380000 rial (money currency of Iran). So, simply when you think of 20 dollars in my point of view, you should think of it as 760000 dollars!!! That's why we can not afford even 20 dollars easily. And as a learning platform you are doing a huge favor to people like me by sharing every new free video and I'm thankful so much🙏✨

[@RajkumarYadav-vo3sq]

i have been following your mathematics solutions since long , it is very helpful and easy to understand ...........can you please help with design of experiment with 4 factors ( 1. peak current (not continuous) 2. Arc-sensitivity (continuous) 3. Duty factor (continuous) 4. pulse on-time (continuous) .................with each of 5 levels ...(AND WITH A LIMITED NUMBER OF RUNS) ........ your response is much appreciated. thankyou.

[@muskanjain869]

factorial design it should be.

[@jaredcommey9749]

Thank you you helped me understand this better

[@sarahwoody8076]

I'll miss you Khan.

[@BritneyFreak34812]

Everytime I find a Khan Academy video and hear Sal.. I already know he's just going to repeat sentences constantly

[@moeed5554]

ikr? lol

[@derekcoiner346]

repeat sentences constantly... repeat... sentences.... constantly. Okay so he's going to repeat sentences constantly and the thing is.... it's weird.. okay, it's weird. but you're going to learn it... you're... going... to learn... this... material.

[@michellenasrudin9515]

can you get this lecture in Swedish in any way? would be so good.

[@janalrussela.gonzaga2694]

this is for my class

[@lenleib2673]

This looks like it might be good for an AP Statistics Class :)

[@mitchellsteindler]

As far as I remember, experimental design wasnt part of AP stats

[@cloudlie3338]

@@mitchellsteindler it is, I am pretty sure that's what this video is for.

[@advaitmishra2992]

saved my life

[@xma3559]

Good one

[@_Zainab_Fatimah]

Hello, please one video for " how to find unreasonable experimental design in a published science paper" please please

[@bryanqueue]

Thanks mate, it really helped a lot :D

[@maxmaximum10]

Would it be possible in an experiment such as this to use people as their own controls? Such as giving a placebo for the first stage, recording their A1c, then when giving the next set of drugs swap in the test drug, and compare results between the two stages. If this was feasible it'd remove the need for blocking, with confounding variables less about individual differences which can be difficult to account for, and more about any changes that may occur over time between the two stages. Just spitballing though, I imagine there's a reason we don't tend to do this!

[@dr.adoriwinchester2107]

Yes it’s possible to do this kind of study it’s called (before and after trial using historical controls) but the problem of this study would be that the improvement noticed may simply be because of other patient management techniques , may also have improved recently or else because the data collected earlier was incomplete or erroneous .

[@mugimbaisaac6541]

wat do i do to get lectures in order

[@congocargologisticsingoma924]

Thank you helpful

[@mansimalegaonkar346]

Great video

[@maheshjawale6392]

very well explained

[@gouravgosain7317]

How does he know everything?maths science history...

[@theo.g1462]

that's what I'm saying lmaooo

[@ngcynonyii4433]

Because they are similar

[@theboomsquad4582]

Let's go

[@potatochipchloe9174]

First view and comment

[@asifchattha9822]

Are u from Pak

[@spicyjia6217]

If Ranboo was a teacher:

[@theboomsquad4582]

Second

[@BrandonSpaceHero]

Aww man!

[@gamerz11011]

First

[@cusescholar3582]

Your idea of replication is wrong! Replication is ensuring that we have a sufficiently large sample size, not repeating the experiment.

[@slader5357]

God bless in Jesus name

[@languageandmana9255]

♥♥♥♥♥♥🙏🙏🙏🙏