Rocio manipulates the level of stress that participants are exposed to, such that one group of 50 participants are randomly assigned to a low stress condition and another group of 50 participants are randonly assigned to a high stress condition. He later measures the participants' performance on a memory test. What is the independent variable (IV) in this example?

Question

Quizplus · Accepted Answer

The independent variable (IV) is the variable that is being manipulated by the researcher in order to observe its effects on the dependent variable. In this case, Rocio is manipulating the level of stress, and therefore, this is the independent variable.

Rocio Manipulates the Level of Stress That Participants Are Exposed