Professor Marquez designed an experiment to test his hypothesis that exercise will increase spelling ability. He divided children into three groups and had one group do 10 minutes of exercises, one group do 30 minutes of exercises, and the third group do no exercise. He then tested all three groups of children to see how many words they could spell correctly on a spelling test. In this experiment, the scores on the spelling test serve as the __________.
A) dependent variable
B) independent variable
C) control group
D) reliability measure

Question

Quizplus · Accepted Answer

The scores on the spelling test are the dependent variable because they are the outcomes being measured to see if they change in response to the different levels of exercise (the independent variable).

Professor Marquez Designed an Experiment to Test His Hypothesis That