Mr. McCarthy hired Anya to collect data from a group of subjects. Neither Anya nor the subjects were aware of the independent variable that Mr. McCarthy had manipulated. This is an example of __________.
A. randomization
B. a placebo
C. double-blind control
D. experimenter bias
Answer: C
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Anorexia nervosa and bulimia nervosa are both linked to abnormalities in the neurotransmitter ______, which signals feelings of fullness, and the hormone ______, which triggers eating.
A. serotonin; leptin B. dopamine; melatonin C. dopamine; leptin D. serotonin; melatonin
As discussed in the text, there are three types of beliefs that help people to function effectively in the social world, and that are often cast into doubt when people experience violent crimes or other traumas. Which statement is one of these?
a. "The world is just random." b. "Life is without meaning." c. "I deserve what I get." d. "I am a good person."
Which of the following is NOT true of condoms?
a. They are the only widely available contraceptive device for males. b. They can be purchased without a prescription. c. The man should withdraw after completely losing his erection. d. They can be highly effective in preventing pregnancy and sexually transmitted diseases.
In the second stage of Alzheimer disease, a person who was neat and tidy earlier in life would become particularly messy
Indicate whether this statement is true or false.