Determine if the following scenario is an observational study or a controlled experiment and explain your reasoning. A doctor is interested in determining whether a certain medication is effective at treating abdominal pain. He reviews his patients' medical records and finds that a higher proportion of people who took the medication fewer abdominal pain symptoms than those who did not take the medication.

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The Answer of Determine if the following scenario is an observational study or a controlled experiment and explain your reasoning. A doctor is interested in determining whether a certain medication is effective at treating abdominal pain. He reviews his patients' medical records and finds that a higher proportion of people who took the medication fewer abdominal pain symptoms than those who did not take the medication.

Determine If the Following Scenario Is an Observational Study or a Controlled