Research on the effectiveness of fear appeals suggests that inducing moderate levels of fear works better than inducing high levels of fear. According to the text, the explanation for this is that
a. people tune out high-fear messages
b. fear appeals have greater influence on intentions to behave than on actual behavior
c. fear appeals affect actual behavior
d. people tune out high-risk messages
Ans: B
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If, as Daniels (2006) says, we may have the first reversal in increasing longevity in modern life, what would happen?
a. Children would live longer but less healthy lives than their parents b. Children would live shorter but healthier lives than their parents c. Children would lead less healthy and shorter lives than their parents d. Children would live longer than their parents, but would have less healthy children of their own when theybecome adults
According to frequency theory, pitch perception is partially determined by:
a. the frequency of neural impulses traveling along the auditory pathways b. the location in the cerebral cortex where the sound is decoded c. how often the same sound has been encountered in the past d. the location of the activated hair cells on the basilar membrane
Regarding the unconscious, which of the following statements is FALSE?
a. Unconscious thoughts, feelings, or urges may slip into behavior in disguised or symbolic form. b. The superego operates only at the unconscious level. c. The unconscious holds the instinctual drives of the id. d. The brain's limbic system seems to trigger unconscious emotions and memories.
The exchange of chromosome segments during meiosis results in __________
A) severe mutations B) incredible variability among siblings C) higher rates of fraternal twins D) higher numbers of female zygotes than male zygotes