Classical psychophysicists placed a great deal of emphasis on determining the absolute threshold for a particular type of sensory stimulation. This proved to be difficult because
a. the point at which an observer detects a stimulus varies from trial to trial.
b. adequate technical equipment for measuring intensity was not available until recently.
c. subjects must be carefully trained to make these judgments accurately.
d. researchers used samples too small to give reliable results.
A
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Believers in the information-processing model of memory are likely to agree that __________
a) the brain has nothing in common with a computer. b) studying computers can give you useful insights into human information processing. c) auditory information is retained in the sensory register for up to 2 seconds. d) information flows from one memory system to the next.
The median age of first time marriage in the U.S. is now _____ for men and _____ for women
a) 35; 25 b) 29; 26 c) 32; 30 d) 28; 24