Please describe the difference between experimental design, pre-experimental design, and quasi experimental design.

Explain why you might use one design type over another (you don’t have to describe this for all three but consider what might be a benefit of one design type in a certain situation). Also consider the possible threats to internal validity that can occur with each design type that may impact your choice. (In other words, it might be best to come up with an example and describe which research design you would use and why.)