Amy conducts an experiment in which she discovers that brunettes have more fun. She has three brunette females and three blond females go to the same party and record how many times they were asked to dance. In her experiment, Amy has defined the dependent variable as the number of times they were asked to dance, and the ___________ as hair colour.
A)correlational variable
B)extraneous variable
C)confounding variable
D)independent variable

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated or changed in an experiment to see if it has an effect on the dependent variable. In this case, hair color (brunette or blond) is the variable that Amy changes to observe its effect on the number of times participants are asked to dance, making it the independent variable.

Amy Conducts an Experiment in Which She Discovers That Brunettes