A scientist studied whether climate affected growth in rats. All rats were the same age and from the same parent rats. For the study, they were raised in three distinct climates: tropical, arctic, and multiseasonal. In this study, the climates are _______________.

a.) categorical variables
b.) dependent variables
c.) independent variables
d.) extraneous variables

6 answers

Can Someone help me with this question? Please?
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable.

A dependent variable is the response or measure of results.

Extraneous variables — other than the independent variable — potentially can affect the dependent variable, so they must be controlled. If possible, you try to keep them constant between the experimental and control group.
A scientist studied whether climate affected growth in rats. All rats were the same age and from the same parent rats. For the study, they were raised in three distinct climates: tropical, arctic, and multiseasonal. In this study, the climates are
extraneous variables
independent variables
dependent