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Select the correct answer.A scientist is testing the effectiveness of a new medication. The medication is to be tested on two groups of subjects. One group of subjects receives a placebo pill, while the other group receives the actual medication.Which of the following methods is being used to investigate the effectiveness of the medication?

Select the correct answerA scientist is testing the effectiveness of a new medication The medication is to be tested on two groups of subjects One group of subj class=

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The Solution:

The correct answer is [option D]

The correct method being used in the investigation is the controlled experiment.

Thus, the correct answer is [option D]

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