Jacqui knew that “Oscar,” the monkey she was observing in the lab, had been separated from his mother early in life. Jacqui saw Oscar sitting in the corner with his shoulders hunched over and his hands on the floor and recorded his behavior as a “depressive posture.” Another researcher started to laugh as she noticed from her angle that Oscar was actually playing with a mouse he had trapped under his hands. Jacqui made an error in her judgment of Oscar’s behavior because of her expectations, which is a form of __________.
A. reactivity
B. blind observation
C. observer bias
D. sampling error
Answer:C
Jacqui knew that “Oscar,” the monkey she was observing in the lab, had been separated from his mother early in life. Jacqui saw Oscar sitting in the corner with his shoulders hunched over and his hands on the floor and recorded his behavior as a “depressive posture.” Another researcher started to laugh as she noticed from her angle that Oscar was actually playing with a mouse he had trapped under his hands. Jacqui made an error in her judgment of Oscar’s behavior because of her expectations, which is a form of __________.
A. reactivity B. blind observation C. observer bias D. sampling error