Multiple Choice
Which of the following studies would be impossible to answer by a cross-sectional study?
A) How many 6-year-olds and 12-year-olds have friends of the opposite sex?
B) How do 6-year-olds and 12-year-olds react when a friend becomes abusive?
C) Do 12-year-olds generally have more friends, or fewer, than 6-year-olds?
D) Do children with many friends at age 6 also have many friends at age 12?
Correct Answer:

Verified
Correct Answer:
Verified
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