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A researcher has children watch 30 minutes of violent television, and then counts the number of times they hit each other afterward in a one-hour play period as a measure of aggression. The researcher causes aggression, however this conclusion may be invalid because:
Psychologymedium
Aall children are prone to aggressive behavior
Bit is unethical to force children to watch violent television
there was no control group
Daggression wasn’t operationally defined
Correct Answer: C. there was no control group
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