Which of the following describes Weber's law?
A. What an individual sees and hears is completely dependent on her or his perception and desire.
B. The size of a just noticeable difference in stimuli perception is a constant fraction of the intensity of the stimulus.
C. Muscles control the shape of the eye's lens to adjust to viewing objects at different distances.
D. The texture of a surface becomes more tightly packed together and dense as the surface moves to the background.
Answer: B
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Regarding the treatment of obsessive-compulsive disorder, it was discovered that:
A. antidepressant drugs are only effective for compulsions involving checking B. psychoanalysis is highly effective C. spontaneous recovery of obsessions occurs within minutes of the therapy session D. not all people respond to drug treatment
The Cree people of Northern Canada value visual skills needed to find food on the frozen tundra, while the Puluwat people in the South Pacific prize ocean-going navigation skills necessary to get from island to island. These examples
a. show that divergent thinking is not a part of every culture. b. raise serious questions about general definitions of intelligence. c. show that convergent thinking is not part of every culture. d. demonstrate biological adaptation and not aspects of intelligence.
Of the following, the infection that is divided into three stages is ____
a. gonorrhea c. syphilis b. chlamydia d. trichomonas
The manipulation of a stimulus that can be naturally changed with little effort is called ______.
A. a mixed manipulation B. a natural manipulation C. a quasi-manipulation D. a staged manipulation