A participant in an experiment is told that a particular pill should improve her performance on a cognitive task. The participant is then given the pill, and she performs better than usual on the task. In actuality, the pill did not contain any ingredients that would affect her performance on the task. The participant's improved performance was most likely due to
A. the double-blind design.
B. random variables.
C. the placebo effect.
D. confirmation bias.
Answer: C
You might also like to view...
If Dr. Beenken wishes to reduce the positive symptoms in her patients with schizophrenia, she should prescribe:
A. dopamine B. a benzodiazepine C. a typical neuroleptic drug D. lithium
Schrauf and Rubin's "two groups of immigrants" study found that the reminiscence bump coincided with periods of rapid change, occurring at a normal age for people emigrating early in life but shifting to 15 years later for those who emigrated later. These results support the
A. cognitive hypothesis. B. self-image hypothesis. C. narrative rehearsal hypothesis. D. autobiographical hypothesis.
Two-month-old Chucky does not exhibit the Moro reflex. What kind of problem will he most likely exhibit? a. He will be less able to grasp objects
b. He will be less able to eat. c. He will be less able to cling to his mother. d. His eyes will not be well protected.
An advantage of science as a human activity is that:
a. science is subject to experimenter values. b. we can rely more on our collective common sense than on observation. c. science can be done within a community of other scientists. d. knowledge can only exist in social contexts.