Researchers wanted to see if adults were actually afraid of the dark by exposing them to different levels of light in a room while measuring their heart rates. In this experiment, what are the heart rates of the participants?

Question

Quizplus · Accepted Answer

The heart rates of the participants are the dependent variable, as they are being measured in response to the independent variable (different levels of light in the room). The independent variable is the level of light, as it is being manipulated by the researchers. A control group may or may not be used in this experiment, but it would be a group that is not exposed to any changes in light levels, while an experimental group would be exposed to different levels of light.

Researchers Wanted to See If Adults Were Actually Afraid of the Dark