00:01
Okay, so in this question we're told that katie has two types of dog treats, chicken and beef, and she wonders which type her dog prefers.
00:07
So what she does is that she carries out an experiment where she offers her dog both treats at the same time, and for her definition of consistency, she always puts the chicken treat in her right hand and the beef treat in her left.
00:18
Her dog chooses the chicken treat in 85 out of 100 attempts, and because of that, katie concludes that her dog prefers the chicken treats over the beef treats.
00:26
What we're asked here is to identify a confounding variable that makes her a conclusion.
00:30
And appropriate.
00:31
We're supposed to choose one answer.
00:33
And so what we need to understand here is what a confounding variable is.
00:36
And it is what it sounds like.
00:38
It's just a variable that affects other variables in a way that's going to distort our idea of their relationship between those two, right? so let's say we're trying to measure people like blue cups or red cups first, but then we put two different beverages in like each cup.
00:55
So we have like apple juice in the blue one and orange juice in the red one.
00:58
If people take the red cut more doesn't necessarily mean that they like red.
01:02
Maybe they just like orange juice more, right? so you can see that like the type of juice is a confounding variable that's going to affect what we perceive people like better, red or blue, even though that's like, you know, that's not, it's not great if you're trying to do an experiment...