A. the placebo effect
B. an extraneous variable
C. variability
D. psychosomatic illness
Correct Answer: the placebo effect ✔
Last Updated: May 03, 2024
A. the placebo effect
B. an extraneous variable
C. variability
D. psychosomatic illness
Correct Answer: the placebo effect ✔
Last Updated: May 03, 2024