Multiple Choice
Frances wishes to study the effects of violent videogames on children's levels of aggression. As children come to the lab for the study, she flips a coin. If it turns up heads, the child plays a violent videogame. If it turns up tails, the child plays a nonviolent videogame. Frances has used the technique of
A) random selection.
B) random assignment.
C) creating matched pairs.
D) correlated assignment.
Correct Answer:

Verified
Correct Answer:
Verified
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