Which question is best addressed with the experimental strategy?
A) What is the average number of hours of sleep that a typical college student gets each night?
B) Is there a relationship between the amount of sleep that college students get each night and the GPA of those college students?
C) Does increasing the hours of sleep college students get each night cause an increase in GPA?
D) What career choices are most popular among students with high GPAs?

Question

Quizplus · Accepted Answer

The experimental strategy involves manipulating a variable and observing the effects on another variable. In this case, the variable being manipulated is the amount of sleep college students get each night, and the variable being observed is the GPA of those college students. By randomly assigning participants to either a control group (no change in sleep) or an experimental group (increased hours of sleep), we can observe whether or not increasing the hours of sleep causes an increase in GPA. Choices A, B, and D would be better addressed with survey or correlational strategies.

Which Question Is Best Addressed with the Experimental Strategy