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Jeffrey, a Researcher, Is Conducting a Drug Trial in a Controlled

Question 15

Multiple Choice

Jeffrey, a researcher, is conducting a drug trial in a controlled environment.He manipulates several variables and measures the effect of each variable on the subjects of the trial.In this scenario, Jeffrey is using the ________.


A) experiment method
B) field research method
C) nonparticipant observation method
D) secondary analysis method

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