Experimental Design Negative Controls

Cartoon explaining what negative controls are, for use when you're designing an experiment.
Please give feedback in comments as to whether this was helpful to you.

[@chrismebane2354]

These are wonderful. Maybe next Control Kitty will ask just how Dr. Johnson assembled all those volunteers for his test. Where they representative or self-selected? A bunch of caffeine habituated javaheads who responded to an ad in the coffee shop? Double blinded to reduce bias? I could see another video on randomization and sampling frames. I'm sure David Glass's book goes into all that, but well, I have a shelf full of related books and I'm unlikely to benefit from and want to buy another. Unless maybe he hooks with another clever video or two. Go Kitty!

[@HadithWeekly]

the cat really pissed off the scientists LOL

[@BruceWayne-us3kw]

My blood pressure rose when he said "prove" the hypothesis.

[@xenioralad3159]

FalsiFy

[@najatabdulrahim1711]

I am aware that negative control (Decaf group) is essential to be tested, however, Kitty needed to mention the importance of testing the blood pressure of the same volunteers before drinking and after drinking the caffeine. Because we are not sure if the volunteers themselves have any health issues. some people might have diabetes, and others might have already high blood pressure during the experiment. we can not confirm our decisions by these basic findings.

[@emmasivewrightmd]

These videos are so good! Love control kitty

[@maimai-bd2iw]

I LOVE THIS SO MUCH, I AM SO GRATEFUL FOR YOUR WORK! The animation is so cute

[@eggedstudios278]

That cat was wearing the lab coat in that relationship.

[@dsdskdkw6354]

the marker sounsd made me grit my teeth x d

[@NinasBasket]

That was just wow thanks alot for this amazing and enlightening video! ♥️👍

[@jessicazhang7189]

A quick question: If we only want to see the effect of caffeine on the subjects, isn't it sufficient to just let the volunteers drink coffee and decaf coffee? If drinking fluid has an effect, for example, then it would be affecting both groups anyway

[@iamlethibe]

Amazing! Thank you!

[@douglasheinl250]

Great video, thank you.

[@BradyJ1204]

awesome

[@user-ul9fz7kn2z]

I hate the marker squeaking noise :(

[@haileym1472]

thank you !!! Very NICE!!!!! ;)

[@devinleung3162]

Hello Mrs. Morrisey, What is our assignment due 10/12

[@confusedsteak4570]

This is Mr.Vega and I am also quite confused with the 10/12 assignment, Mrs.Morrissey

[@vigneshkumar8210]

Wonderful

[@jasonsalvador6243]

COOL!

[@hivavlogs3255]

Thank you! This helped

[@hannahjamison7223]

cramming the night before the ap exam😍

[@jiminkeelh3247]

thank you so much!! I have a scientific paper homework that I need to do huhuu

[@UnknownvV]

What would the positive and negative control be on the experiment of plant on window sill will grow 3cm vs plant in middle of living room. I am stumped

[@centerforanimalecology268]

Learning with enjoy

[@bryt1040]

What kind of negative control would the water be?

[@mysteryman595]

It shows that the changes in blood pressure are due to general fluid consumption, not specifically coffee

[@bryt1040]

Jupjeet Sandhu thank you!!

[@astaganaga1906]

The cat’s so woke

[@sccm100]

that marker sounds horrible

[@yujinan9329]

고양이 똑똑하네

[@experimentaldesignforbiolo2848]

예, 고양이는 확실히 하루를 구하고 있습니다.

[@HadithWeekly]

@@experimentaldesignforbiolo2848 고양이는 과학자에게 정말 화가 나

[@experimentaldesignforbiolo2848]

@@HadithWeekly 과학자는 Kontrol Kitty의 말을 들어야합니다

[@HadithWeekly]

@@experimentaldesignforbiolo2848 예

[@JosephReilly-jx9zc]

dude quit adding the marker scraping sound effect it makes your videos unwatchable