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

Introduction to experiment design. Explanatory and response variables. Control and treatment groups.

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.

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[languageandmana]

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[RajkumarYadav-vosq]

i have been following your mathematics solutions since long, it is very helpful and easy to understand 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) each of 5 levels ...(AND WITH A LIMITED NUMBER OF RUNS)
your response is much appreciated. thankyou.

[jaredcommey]

Thank you you helped me understand this better

[michellenasrudin]

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

[BritneyFreak]

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

[bryanqueue]

Thanks mate, it really helped a lot :D

[maxmaximum]

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!

[_Zainab_Fatimah]

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

[lenleib]

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

[gouravgosain]

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

[cusescholar]

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