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

Courses on Khan Academy are always 100% free. Start practicing-and saving your progress-now: www.khanacadem...
Introduction to experiment design. Explanatory and response variables. Control and treatment groups.
View more lessons or practice this subject at www.khanacademy...
AP Statistics on Khan Academy: Meet one of our writers for AP¨_ Statistics, Jeff. A former high school teacher for 10 years in Kalamazoo, Michigan, Jeff taught Algebra 1, Geometry, Algebra 2, Introductory Statistics, and AP¨_ Statistics. Today he's hard at work creating new exercises and articles for AP¨_ Statistics.
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today!
Donate here: www.khanacadem...
Volunteer here: www.khanacadem...

[@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.

[@_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 .

[@advaitmishra2992]

saved my life

[@slader5357]

God bless in Jesus name

[@jaredcommey9749]

Thank you you helped me understand this better

[@michellenasrudin9515]

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

[@gouravgosain7317]

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

[@theo.g1462]

that's what I'm saying lmaooo

[@ngcynonyii4433]

Because they are similar

[@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.

[@janalrussela.gonzaga2694]

this is for my class

[@cusescholar3582]

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

[@congocargologisticsingoma924]

Thank you helpful

[@xma3559]

Good one

[@theboomsquad4582]

Let's go

[@potatochipchloe9174]

First view and comment

[@gamerz11011]

First

[@mugimbaisaac6541]

wat do i do to get lectures in order

[@theboomsquad4582]

Second

[@sarahwoody8076]

I'll miss you Khan.

[@asifchattha9822]

Are u from Pak

[@mansimalegaonkar346]

Great video

[@languageandmana9255]

♥♥♥♥♥♥🙏🙏🙏🙏

[@BrandonSpaceHero]

Aww man!

[@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.

[@spicyjia6217]

If Ranboo was a teacher:

[@maheshjawale6392]

very well explained