In the 1980's, China reported the highest incidence of two prenatal disorders, anencephaly and spina bifida, and, in an effort to reduce this problem, the government began providing mothers with supplements of __________
a) vitamin C
b) folic acid
c) magnesium
d) iron
Answer: b
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The fact that the correlation in IQ scores between identical twins reared apart is lower than that between identical twins reared together suggests that
a. environmental factors can have an influence on intellectual development. b. environmental factors have no impact on intellectual development. c. genetic factors have no impact on intellectual development. d. identical twins often do not have the same genotype.
Which of the following is NOT a disadvantage of the mean?
a. It is unduly influenced by extreme scores. b. Its value many not actually exist in the data. c. It is least stable from sample to sample. d. Its interpretation in terms of variables requires some faith in the interval properties of the data.
In the United States, ________________ are LEAST LIKELY to be living at home with their parents in their early 20s
a. Latino Americans b. White Americans c. African Americans d. Asian Americans
What is the most important androgen for pubertal development?
A. testosterone B. estradiol C. gonadotropin-releasing hormone D. estrogen