After observing that students who regularly attend class appear to be making good grades, i propose the hypothesis that regular class attendance increases the probability that students earn higher grades. if i attend classes regularly this semester, i should make higher grades than i did last semester when i often missed class. this is a

The study done by the one who is proposing the hypothesis is a correlational study.

Explanation:

The researcher that has proposed the hypothesis has carried out a simple study based on the relation between the actions committed and the results obtained. The results secured are evident that a certain action drives the process to reach a better result. Hence, the study can be deemed to be relevant. Thus, the methodology of comparison used to analyze the results makes the study a 'correlational study'.