Question

Sixty albino laboratory rats were randomly divided into two groups as part of a study on the effects of alcohol on reaction time. Each member of one group consumed a specified amount of alcohol and members of the other group had a non-alcoholic beverage. The reaction time of both groups was measured before and after taking the beverage/alcoholic drink. What is the INDEPENDENT VARIABLE?

a. Amount of alcohol
b. Reaction time
c. One albino laboratory rat
d. Sixy albino laboratory rats​

Answer 1

One albino laboratory rat is an independent variable.

Explanation:

• An independent variable is that variable that can stand alone.
• Other variables have no effect on the independent variable and it remains exactly the same without any change in it.
• The other variables may show deviation from normal but it stands on its own.
• For example, the age of a person is an independent variable.