The most commonly used measure of central tendency is the
A. mean.
B. median.
C. mode.
D. range.
A. mean
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What might make a physician suspect that the person from whom she has just drawn blood has sickle-cell disease?
a. The blood is very dark in color. b. There is an elevated level of phenylalanine in the blood. c. The blood cells are not round. d. The blood cell each contain only 45 chromosomes.
The findings of research on the early perception of language-relevant speech sounds are significant in that they demonstrate that
a. adults have sensitivities to sounds that infants do not have. b. adults lose their sensitivities to language-relevant speech sounds as part of the natural aging process. c. there are no differences between infants and adults with respect to their sensitivities to language-relevant speech sounds. d. infants start out with sensitivities to sounds that they lose if these contrasts are not used in their language.
Which of the following professionals is trained as a medical doctor and may be found working in either private practice or in a hospital setting?
A) Clinical psychologist B) Clinical social worker C) Mental health counselor D) Psychiatrist
The two major subsystems of the nervous system are the central nervous system and the
a. autonomic nervous system. b. sympathetic nervous system. c. peripheral nervous system. d. parasympathetic nervous system. e. somatic nervous system.