In research, a researcher observes or measures (without manipulating) two or more variables to find relationships between them, without inferring a causal relationship.

The answer is correlational.

Explanation:

Correlational research intends to find the relationship between two or more variables. For example, a news article called "Eating carrot may improve your  vision" is likely based on a correlational study.

It's important to recognise that correlation is NOT the same as causation. A found relationship between variables does NOT mean one is the direct cause of the other.

answer; basic psychology;