A scientist trains a group of rats to run a maze to get food pellets. Another group of rats is trained to run the maze without receiving food pellets. At the end of the training,
the group receiving the food pellets runs the maze faster and with fewer errors. However, when the scientist begins giving the second group of rats food pellets for running the maze, they almost immediately begin running the maze as well as the first group. This improved performance is probably due to ________.
a. latent learning
b. spontaneous recovery
c. insight
d. vicarious trial and error learning
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According to the chapter I'm Warning You, the third experiment was conducted in a dorm setting. What
was the independent variable? (a) the warning on the elevator was either present or absent (b) the confederates' response to the warning was either compliant, noncompliant, or no confederate was present (c) the participants were either approached by a confederate alone or in groups (d) both b and c above
Assuming that they did not speak English until they came to the United States, who would probably score the worst on a test of English grammar?
a. Weng-hui, who immigrated to the United States from China at 5 years old b. Myung, who immigrated to the United States from Korea at 17 years old c. Guang, who immigrated to the United States from China at 28 years old d. Myung and Guang will do equally poorly on the test because they both started speaking English after the critical period ended at 12 years old.