Which of the following is true about theories?
A. Theories do not need to be revised when new data are available.
B. Theories generate hypotheses that guide further research.
C. Theories are based on one set of observations and may not account for other observations.
D. Theories are primarily based on the intuitions of an individual scientist.
Answer: B
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The suprachiasmatic nucleus is ____
a. ?the pleasure center in the brain where most addictions arise b. ?the part of the brain that is left in charge when a person is hypnotized c. ?the point through which all sensory systems send their impulses to the cortex of the brain d. ?our internal clock influencing sleep and wakefulness
In general, a psychologist is someone who usually:
a. specializes in assessing the physical causes of mental problems b. often prescribes drugs c. works in secondary school settings d. holds a doctorate in psychology
You are pushing a stroller that has two babies in it. One boy, dressed in blue, and one girl, dressed in pink. Someone stops you tells you how beautiful your baby boy and girl are. Then they ask if they are "identical twins
" You tell them they are not, but what are you thinking? a. It is impossible to have identical twins of different sexes. b. They could be identical; that was a great question. c. Fraternal twins are usually both girls. d. Fraternal twins are usually both boys.
If you were studying the heritability of intelligence and you examined only people living in a wealthy community, you would be likely to
A. get a more accurate estimate of heritability than if you studied a poorer community. B. underestimate the heritability of intelligence. C. overestimate the role of environmental factors in intelligence. D. get an exaggerated estimate of heritability.