Question

A professor wanted to determine if the hours a student sleeps at night affects

test scores. He found the more hours of sleep a student got the higher the
test scores were. What is the independant variable in this situation.

Answer 1

independant:student

dependent:time

Explanation:

independent:does not change and he uses the same amount of students each time (to see which of the 1 students in each test would do better)

dependent: The time was changed (dependent can be change by the experimenter.)