The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful toys, exercise wheels, and mirrors. The experimenters talked to the rats in the second group and demonstrated concern. Based on the results of previous research the researchers expected: (Points: 5)
the rats in the first group to exhibit depression.
the rats in the second group to become hyperactive and unable to focus on a task.
the rats in the second group to make a higher score on an intelligence test.
the rats in the first group to make a higher score on a test of intelligence.
Third choice.
Based on the information given, the researchers expected that the rats in the second group, which lived in the enriched environment of "Rat Disney Land," would show certain behavioral changes compared to the rats in the first group, which lived in a traditional cage.
To determine the researchers' expectations, we can analyze each option:
1. The rats in the first group to exhibit depression: While the first group lived in a quieter environment, they had access to food and water, so it is unlikely that they would exhibit depression.
2. The rats in the second group to become hyperactive and unable to focus on a task: The second group had an enriched environment with toys, exercise wheels, and mirrors. While it is possible that they might become hyperactive, it is not mentioned that they would be unable to focus on a task.
3. The rats in the second group to make a higher score on an intelligence test: The second group received additional stimulus and social interaction from the experimenters. Although this could potentially have a positive effect on their cognitive abilities, it is not explicitly stated that they would perform better on an intelligence test.
4. The rats in the first group to make a higher score on a test of intelligence: This is the most likely expectation based on the information given. The rats in the first group had a traditional cage environment with no additional stimuli, which could result in lower cognitive performance compared to the second group.
Therefore, the researchers likely expected the rats in the first group (living in a traditional cage) to make a higher score on a test of intelligence.