Correct

Clinical neuropsychology is one of those fields in psychology in which the use of
an experimental design would be unethical. This field relates specific brain
damage to specific deficits in behavioral skills. Studying this through experiments
would involve deliberately destroying parts of the human brain to see what happens.
We hope that it is obvious why such an approach is unethical. But finding people
with specific brain damage and measuring their performance, which is a correlational
technique, is an ethical way to proceed.