DrHoward Really Wants Her Newly Developed Antianxiety Medication to Help

Multiple Choice

Dr.Howard really wants her newly developed antianxiety medication to help people,but by smiling at the people who are getting the new drug and not at those who are getting the placebo,she is influencing her experimental subjects to respond differently than her control group subjects.In other words,she is unintentionally creating

A) validity replication.
B) placebo effects.
C) correlational effects.
D) experimenter expectancy effects.