A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half of the students in the class $5.00 if they got an A on their next test. The other half of the class was not offered any money. What is the independent variable in this experiment?
the number of questions on the test
the number of students in the class
the student’s grade on the test
the amount of money offered***
Right
right
i honestly have no idea
The independent variable in this experiment is the amount of money offered.
To identify the independent variable, you need to look for the factor that the teacher deliberately manipulated or changed. In this case, the teacher deliberately offered money to some students and did not offer money to the other students. The amount of money offered is the factor that the teacher varied and is therefore the independent variable.