Phillipe, a researcher, examined the effect of lighting on learning. Randomly selected participants were asked to learn the same chapter using either a 100-watt or a 125-watt bulb. He found no difference between the learning capacities of the two groups. The nonsignificant results may have occurred because of
A. selection differences.
B. insufficient strength of the manipulation.
C. a costly measure of learning.
D. the use of staged manipulations.
Answer: B
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How do you feel the position and acceleration of the head?
a. Olfactory system b. Vestibular system c. Sympathetic system d. Parasympathetic system
Based on the social comparison explanation of group polarization, group members' attitudes toward an issue should be most influenced by
a. how different their attitudes are from those of an outgroup. b. those in the ingroup who favor a cautious approach. c. the number of people in their group who share that attitude. d. those in the ingroup who offer the most arguments relevant to the issue.
The process by which biochemical elements silence certain genes is known as
polygenics. methylation. epigenetics. mylenation.
Contrast the two major views of color vision theory
What will be an ideal response?