Answer: She should tell participants about her Ph.D. that she as achieved prestigious university
Step-by-step explanation:
According to the question, as the research is based upon obedience of participant , Dr.Yen is indulged in stetting-up experiment and learning lab for student who don't give correct answer .She will give punishment for disobedience or wrong answer as per confederate terms.
If she wants to increase chances of obedience in participant, she should let them know that she as gained her Ph. D from famous and prestigious university so that they can take her research more seriously. Thus, they will act responsibly and try to answer more correctly.