In a large study of 1- to 3-year-old twin pairs, parents viewed________
A) identical twins as more alike in temperament than researchers’ ratings indicated
B) fraternal twins as somewhat opposite in temperament, whereas researchers rated them as moderately similar
C) identical twins as very much alike in temperament, whereasresearchers rated them as somewhat opposite
D) fraternal twins as more alike in temperament than researchers’ ratings indicated
Answer: B
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Answer the following statements true (T) or false (F)
1. Genetic testing is now available for over 1,000 disorders. 2. The anxiety that follows a positive health screening result almost always declines fairly quickly. 3. Concerns about the potential cost may lengthen the delay in seeking health care by as much as a factor of 5. 4. Acupuncture and massage are the most common forms or complementary and alternative medicine. 5. The average length of a hospital stay in the United States is 2–3 days. 6. Physicians provide more information than their patients really want. 7. Physicians now spend literally half their time completing “paperwork.” 8. Evidence against the safety of vaccinations has been discredited.
Adolescents are less likely to get ____ and more likely to have ____ in their daily diet than is recommended
a. vitamin A? fat b. sugar? protein c. vitamin A? iron d. sugar? sodium
Most STDs are spread from one person to another through
a. intercourse. c. anal-genital contact. b. oral-genital contact. d. all of these.
Sex differences in risk-taking in the first year of life may stem, in part, from
a. boys being more courageous than girls. b. increased testosterone levels in boys. c. girls being placed in fewer risky situations. d. boys heightened activity levels.