Multiple Choice
A researcher asks a group of unhappy people to follow the advice in their newspaper horoscopes,and finds that over six months most of them become happier.What is the main problem with this research?
A) Most scientists are skeptical of horoscopes.
B) The study has no control group.
C) The study has too many independent variables.
D) Six months is too short a time for a before-and-after study.
Correct Answer:
Verified
Correct Answer:
Verified
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