Checking the furnace repeatedly before one can sleep and washing one's hands many times in one hour are examples of
a. obsessions.
b. superstitions.
c. compulsions.
d. phobias.
Ans: c. compulsions.
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Which of the following statements regarding sound waves is incorrect?
A. high amplitude is perceived by the brain as loud B. low amplitude is perceived by the brain as soft C. the subjective experience of a high or low note is determined by frequency D. fast frequency is perceived as a high note
Despite their lack of instruction in memorization strategies, Australian aboriginal children do better than educated Caucasian children while learning
a. items on shopping lists. b. names and dates of historical events. c. locations of objects in a local setting. d. events that happened during infancy in one's own life.
The importance of environmental influences on intelligence is provided by evidence that:
a. fraternal twins have more similar intelligence test scores than ordinary siblings. b. intellectual development of neglected children in impoverished environments is often retarded. c. Head Start programs for disadvantaged children lead to short term improvements in intelligence test scores. d. all the above are true.
Which of the following is NOT an indicator of prostate cancer?
A. development of hemorrhoids B. difficulty in having an erection C. blood in the urine or semen D. numbness in legs or feet