Anastasia replaced all the 60-watt light bulbs in her house with 40-watt light bulbs. She claims that the 40-watt bulbs give off the same amount of light, and yet her husband Boris claims that the 40-watt bulbs give off far less light. Based on research conducted by psychophysicists, you should conclude that compared to Anastasia, Boris has:
a. a higher adaptation level for light
b. a lower absolute threshold for light
c. a lower difference threshold for light
d. a higher absolute threshold for light
C
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Behavioral geneticists are finding that within a group of people, about _______________ of the variation in personality traits such as happiness is attributable to genetic differences
a. 10 percent b. 30 percent c. 50 percent d. 70 percent
A behaviorist would be willing to accept which of these explanations? a. The rat turned toward the light because it likes to explore its environment
b. The rat turned toward the light because it enjoys being able to see what is around it. c. The rat turned toward the light because of previous reinforcements for approaching light. d. The rat turned toward the light because it was afraid of the dark.