A psychology professor conducts a research study to determine if there is a relationship between the time spent on studying and the grades achieved by college students. Which type of research is this?

correlational research

Explanation:

In correlational research, there will be two variables, that are used to answer a question or clarify a given issue.

When two variables are related, like time spent studying and the grades achieved by students a psychologist research seeks to analyze the relationships that stem from changes in a variable that impact directly the other:

Lets assume that the higher the time the students they spent reviewing the better the goals they get: in this case, there is a direct relationship.

If for example, we study that the higher time they spent studying the less time they have to work, then we are talking also about an indirect relationship.

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