What type of research design would be used to compare parents who spank and those who do not on their children's aggressive behavior?

A) quasi-experimental research
B) survey research
C) observational research
D) archival research

In order to compare parents who spank and those who do not on their children's aggressive behavior, a quasi-experimental research design would be best. This would involve selecting two groups of parents, one who spanks and one who does not, and comparing their children's aggressive behavior. This design allows for some control of variables and could help determine if there is a causal relationship between spanking and aggressive behavior.