In one study, what percentage of 8-year-old African American girls began to develop breasts or pubic hair or both?
A. 20%
B. 35%
C. 50%
D. 75%
Answer: C
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According to the textbook, developing a sense of self is a focus of ____ development.
A. cognitive B. social C. emotional D. temperament
Studies of changes in intelligence as a function of aging suggest that:
a) both fluid and crystallized intelligence tend to decline with age in adults. b) crystallized intelligence tends to decline with age in adults but fluid intelligence does not. c) fluid intelligence tends to decline with age in adults but crystallized intelligence does not. d) neither fluid nor crystallized intelligence declines with age in adults.
Some high in conscientiousness is, on average, __________
a. more considerate of other people's feelings b. more likely to be on time c. more outgoing and social d. more aware of their surroundings
What fertility technique extracts ova, combines them with sperm, and, after a few days, implants two or three blastocysts into a woman's uterus?
A. in vitro fertilization B. nutritional supplements C. surrogate motherhood D. artificial insemination