Which of the following is NOT one of the primary skin sensations?
a. pressure
b. pain
c. temperature
d. wetness
D
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Anxiety sensitivity is a __________.
A. fear of open spaces B. belief that anxiety will kill C. trait-like belief that certain bodily symptoms may have harmful consequences D. fear that situations in which panic attacks occur will be devastating
Abigail is intensely concerned about what others think of her. She worries that she may say the wrong thing or appear foolish. Abigail is exhibiting
a. self-centeredness. b. private self-consciousness. c. public self-consciousness. d. all of these.
Which of the following supports a role of dopamine in addiction to drugs?
A. All drugs of abuse bind to dopamine receptors. B. Dopaminergic neurons are located in the cortex of the brain. C. Humans with the greatest drug-related increases in nucleus accumbens dopamine also experienced the most intense effects of drugs. D. Dopaminergic neurons have been identified in the brains of rats, people, and nonhuman primates.
Why is it optimal for a researcher to ensure that only one variable changes throughout an experiment?
a. Because more than one variable creates a statistical nightmare that is exceedingly difficult to interpret. b. Because multiple variables will require more research participants, and thus more funding. c. Because more than one variable changing can influence our results and lead to incorrect conclusions. d. Because the definition of a true experiment is that only one variable should change at a time; otherwise, it is not an experiment.