What are polychlorinated biphenyls (PCBs)? How do they affect prenatal development?
What will be an ideal response?
Answer: For many years, PCBs were used to insulate electrical equipment, until research showed that they entered waterways and the food supply. In Taiwan, prenatal exposure to high levels of PCBs in rice oil resulted in low birth weight, discolored skin, deformities of the gums and nails, brain-wave abnormalities, and delayed cognitive development. Steady, low-level PCB exposure is also harmful. Women who frequently ate PCB-contaminated fish, compared with those who ate little or no fish, had infants with lower birth weights, smaller heads, persisting attention and memory difficulties, and lower intelligence scores in childhood.
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After spilling her milk, Adrianna remarked, "Oh no, milk down." This shortened sentence is an example of __________.
A. private speech B. telegraphic speech C. babbling D. cooing
You are working in the student placement office when Dr. Heath comes to find a student research assistant. She tells you that she needs a really creative student to assist with the design of her latest project. She asks if the student files show each student's IQ score, because she wants to use that information to make her decision. Based on what is known about creativity and intelligence, you
should: a. tell Dr. Heath that a student's grade point average will provide a more accurate measure of his or her creativity b. pull the files for all students with IQ scores greater than 130, because there is a strong positive correlation between IQ score and level of creativity c. explain that IQ scores and creativity actually have a negative correlation, so she should avoid hiring a student with a high IQ score d. tell Dr. Heath that creativity is only weakly related to intelligence, and IQ score cannot be used to accurately predict a student's overall level of creativity
When Hofstede rank-ordered 53 countries which countries tended to be the most collectivist cultures?
a) democracies b) Communist countries c) Latin American countries d) Correct. Latin American countries have the highest level of collectivist traits. e) Middle Eastern countries f) Incorrect. The highest amount of collectivism is seen in Latin American countries.
Research examining the "what is beautiful is good" stereotype cross-culturally has found that
a. Americans and Koreans both believe that more attractive people are more sociable, friendly, popular, and likable. b. Americans believe that attractive people are more generous, trustworthy, and honest than do Koreans. c. Koreans believe that attractive people are more dominant and assertive than do Americans. d. Americans and Koreans do not believe that attractive people are any happier or more well-adjusted than less attractive people.