In the context of perceptual development, which of the following is true of newborns?
A) They can discriminate between colors right after being born.
B) They cannot perceive movement of light until they are three months old.
C) They are nearsighted when they are born.
D) They are able to focus clearly on distant objects by two months.
C
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When two or more group members join forces to overwhelm one or more other group members,
a. a coalition has formed. b. the group becomes more unified. c. the group usually dissolves. d. a third party mediator is needed.
Benzodiazepines are used to treat _____ and facilitate the functions of _____, the major inhibitory neurotransmitter in the brain. When this neurotransmitter binds to its receptor site, the inside of the neuron becomes more _____ and thus is less likely to fire.
A) depression; glutamate; positive B) anxiety; glutamate; negative C) depression; GABA; positive D) anxiety; GABA; negative
Secondary prevention involves:
a. educating the public as a whole in ways to reduce or eliminate a problem, before it starts b. handling and containing an illness or habit once it has been acquired c. conducting laboratory research into the etiology of specific psychological disorders d. the early identification of risk factors for specific populations
Operational definitions of concepts are important because they:
a. provide an objective and reliable basis for communication among scientists. b. are equivalent in many respects to conceptual replication schemes. c. allow the scientist to accumulate hard and absolute facts. d. provide a key operation for our data and facts.