Which theory helps researchers understand adolescent risk taking?
A. behavioral decision theory
B. cognitive development theory
C. desirability theory
D. alternative choices theory
Answer: A
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Gustav presents you with two graphs representing the same wavelength of yellow light. The wavelength on the first graph is significantly taller than the wavelength on the second, indicating that the first has a higher amplitude. He asks you which yellow light you think will appear brighter, based on the height of the wavelengths. Based on your knowledge of light waves, you reply, __________.
A. "The lower amplitude light will appear brighter than the higher amplitude light" B. "The higher amplitude light will appear brighter than the lower amplitude light" C. "The lights will appear equally bright, since they are the same wavelength-the amplitude of the light wave does not affect brightness perception" D. "The higher amplitude light will appear brighter because it is more saturated than the lower amplitude light"
Regarding phantom limb sensations, which of the following statements is FALSE?
a. Functional MRI confirms that sensory and motor areas of the brain are more active when a person feels a phantom limb. b. A phantom limb may feel so "real" that a patient with a recently amputated leg may inadvertently try to walk on it, risking further injury. c. When people lose an arm, they may at first have a phantom arm and hand, while many years later, the phantom may shrink, until only a hand is felt at the shoulder. d. Phantom limb sensations and the effects of acupuncture can both be explained by the opponent-process theory.
University students often develop illness as the end of the semester draws near. Based on his research, Jamie Pennebaker would suggest that universities might reduce the number of ill students by:
A) reframing final examinations as a challenge by offering prizes to those students who score at the top of their class. B) inoculating students to difficult final examinations by increasing the rigor of the midterms. C) offering stress-reduction activities such as Bring Your Pet to School Day. D) encouraging students keep a journal in which they record their thoughts and feelings.
When positively charged ions flow into a neuron and depolarize it, they create ______
a. a relative refractory period b. breakdown of the cell nucleus c. an action potential d. internal combustion