In an effort to study the acquisition of speech, Dr. Verball reinforces an infant every time it makes a sound. Given this description, Dr. Verball's research method would best be described as a(n) _____ task
a. habituation
b. preferential hearing
c. evoked potentials
d. operant conditioning
d
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In the context of genetic influences on intelligence, a classic study in Louisville, Kentucky, found that:
A) the intelligence quotient scores of dizygotic twins were more alike than scores for any other pairs. B) the correlations in intelligence between dizygotic twins were the same as those between other siblings. C) correlations between the intelligence quotient scores of children and their foster parents and between those of cousins were strong. D) dizygotic twins were more similar than monozygotic twins in spatial memory, ability to categorize things, and word comprehension.
During times of economic hardship, there is an increase in hostility toward illegal immigrants. Psychologists would consider this situation to be an example of
a. scapegoating. b. reaction formation. c. sublimated aggression. d. circumvention.
Research shows that myelination:
a. may continue into adolescence. b. is complete by the time the child is born. c. is enhanced by vitamin B intake. d. enhances cognitive functioning, but not motor functioning.
The membrane potential of a neuron at rest, or what is termed its "resting potential," is about __________
a) -50 millivolts. b) -70 millivolts. c) +50 millivolts. d) +70 millvolts.