A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half 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?

Question

A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half 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

Is it the last one?

Answer 1

Yes, the independent variable in this experiment is the amount of money offered. It is the variable that is intentionally manipulated by the science teacher to observe its effect on student performance. By offering different amounts of money to different groups of students, the teacher can determine if there is a relationship between the incentive of money and the students' grades on the test.

yes.