A study done in France explored whether there is an association between a student's intrinsic motivation and where they sit in class. More specifically, they randomly selected 593 health science students (mostly nursing students) in 9 different classrooms by giving them a questionnaire that measured their intrinsic motivation. (Those that are intrinsically motivated do things because that is naturally satisfying to them and they don't need an external reward.) The researchers also noted the distance each student sat from the front of the class.
A: Is this an observational study or an experiment? Explain why.
B. What are the observational units?
C: What is the response variable? is it categorical or quantitative?
D: What is the explanatory variable? Is it categorical or quantitative?
D: What is the response variable? Is it categorical or quantitative?
E: Did the study involve random sampling? If yes, what is the advantage? If no, what is the disadvantage?
F: The researchers found that students who sat closer to the front of the class tended to have higher intrinsic motivation scores. Is this claim justified? Why or why not?