Researchers were interested in whether relaxation training decreases the number of headaches a person experiences.They randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training.The dependent variable in this study is:
A) training type.
B) number of headaches.
C) control group.
D) relaxation training.

Question

Quizplus · Accepted Answer

The number of headaches is the variable being measured and compared between the two groups, making it the dependent variable in the study. The other options (training type, control group, relaxation training) are independent variables or groupings within the study.

Researchers Were Interested in Whether Relaxation Training Decreases the Number