What Is an Important Disadvantage of Experiments

Multiple Choice

 What is an important disadvantage of experiments? 

A) Experiments do not do a good job of explaining the relationships between the variables studied.
B) Experiments require a great deal of technology to conduct, which makes them more expensive to conduct than other types of studies.
C) Some experiments cannot be conducted because to do so would be unethical.
D) The American Psychological Association requires that only those with doctoral degrees can conduct experiments, which means that many people cannot do them.