The mean is used most often in behavioral research because researchers tend to
a. measure variables that have interval or ratio scores, and the scores form approximately normal distributions.
b. conduct research in which the mathematical center of a distribution is required.
c. conduct research in which only the most frequently occurring score is needed.
d. measure variables that have interval or ratio scores, and the scores usually do not form a normal distribution.
a
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Sue's bones have become brittle, fragile, and thin. Her physician tells her she has __________.
A. osteoporosis B. presbyopia C. melancholia D. echolalia
If you were the parent of a 4-year-old, and your child began to talk to her "imaginary friend," whom she described as a boy who was a clown and who had red hair, which of the following responses should you make?
a. You should probably have her evaluated by a psychologist for an early-onset mental disorder. b. You should take her to your family doctor, to have her evaluated for a vitamin deficiency. c. You should encourage her to continue to play with her "friend." d. You should discourage her from playing with her friends, and continue to tell her that he does not really exist.
Which of the following is an advantage of using a standardized measure?
a) Easy interpretation b) Summary evaluation c) High sensitivity d) High validity
According to Freud, when a traumatic event is buried, it is __________.
A. sublimated B. repressed C. cathartic D. forgotten