A study showed that children who watch more than five or more hours of television a day have lower grades than children who watc
h less. Which of these could be a hidden variable?
A. TV viewing could lead to depression.
B. Children who watch television might also play video games.
C. TV viewing and school grades might not be related.
D. Children who watch more television may have parents who are home less often to help them with schoolwork.
2 answers:
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