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to determine if smoking Marijuana cause lower test scores. which kind of statistical study would be the most appropriate to conduct?double-blind experimental study Case-control observational studySingle-blind
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to determine if smoking Marijuana cause lower test scores. which kind of statistical study would be the most appropriate to conduct?double-blind experimental study Case-control observational studySingle-blind experimental study

User Martin Mandl
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Case-control observational study

User Karim Varela
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