Improving Experimental Design in a Medication Study

Medium Research Summaries Experimental Design

In a study designed to evaluate the effectiveness of a new medication on reducing blood pressure, researchers divided 120 participants into two groups. One group received the new medication while the other group was given a placebo. The participants were monitored over a period of six months, and their blood pressure levels were measured at the beginning and end of the study. After analyzing the data, the researchers reported a significant decrease in blood pressure in the group that received the medication compared to the placebo group.

Which of the following statements best describes a potential area for improvement in the experimental design of this study?

Use a larger sample size to improve the reliability of the results.

Ensure that the placebo group does not receive any medical attention during the study.

Select participants from a single location to control environmental variables.

Provide participants with full disclosure about the study's goals before it begins.

Hint

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