A psychologist believes that college students who sleep 8 hours each night achieve better grades on their exams than those sleep less than this amount. He conducts a study to determine if this belief is true. What is the Independent Variable (IV) in this study? number of hours of sleep grades on the exams the college students the amount of time the students spend studying.

The numbers of hours of sleep affects the academic performance of the student. The number of hours of sleep is the independent variable and the better grades or performance is the dependent variable.

The variable that can be controlled in the experiment is known as the independent variable. This variable can be controlled by the experiment. Its value can be changed based on the experimenter.

The dependent variable is basically the result of the experiment which changes by the change in the independent variable.

abhishekprakash2625 abhishekprakash2625 · Answer 2 · 2021-11-05T13:21:34+01:00

Study is performed to understand the effect of sleep on performance. Yes, the number of sleep hours affects the academic results.

In the data, the number of hours of sleep is a variable factor that can be changed according to the situation and the grades are the dependent variable. It depends on several factors. These variables can change the outcome of the survey and may prove that the grades of those people who sleep 8 hours a day has much better than those who sleep less than 8 hours.

For more information, refer to the link:-

https://brainly.com/question/17373064