00:01
Okay, so gloria wanted to find out if the color food would affect whether kindergarten children would select it for lunch.
00:09
So we're using five identical bowls of mashed potatoes.
00:12
The colors were plain, red, green, yellow, and blue.
00:19
So we're going to do our five bowls.
00:24
There's plain, red, green, blue.
00:32
And i don't have a yellow so we'll just do it like that like that so that's our yellow doesn't make kind of sense but there it is so the first thing that we look at is the independent variable so the independent variable is color so that's what you're changing to see if you're getting a result the experiment isn't or the the experiment aren't going to change colors of your mashed potatoes.
01:18
The groups of the independent variable.
01:21
So the groups are plain, red, green, blue, and then yellow.
01:41
So those are groups of your independent variable.
01:45
And the control group, sorry.
01:47
The control group is this one.
01:50
Oops, don't want that.
01:53
So we circle the control group, the plane, that is what normally we have for mashed potatoes.
02:00
That's what kids are going to be used to.
02:01
So that's your control to sort of see how it deviates from a normal color.
02:06
The dependent variable is dependent variable is amount eaten, right? because in the problem it says that she recorded the number of students that chose each color.
02:26
Oh, sorry, so the number of students is the dependent variable, not amount eaten.
02:34
Those are actually different things.
02:36
Number of students is your dependent variable because that's what you're measuring.
02:45
You want to see how many students choose each color.
02:49
Controlled variables and constants.
02:51
So the controlled variables are the controlled variables.
03:05
So she did this how many times? she repeated this using, oh, she did this experiment using 100 students.
03:10
So the controlled variables are the number of colors that's used number of bowls that isn't changing throughout the entire experiment the way it's presented and the way it's presented i mean they are all put out in front of students and it's done the same exact way the procedure is all the same and that's important because you want to make sure that the color is what's making them choose a certain bowl and not any other factor the number of samples, replicates are repeated trials...