Why do scientists repeat experiments?

Why do scientists repeat experiments?

• A. To extend the results to unrelated fields.
• B. To win better grant funding.
• C. To verify results, reduce error, and ensure findings are reliable and valid.
• D. To make the experiment more complicated.

Answer: (C)

Repeating experiments is all about trust in the results. When scientists redo an experiment, they check whether the same outcome happens again, which helps reduce random mistakes and measurement errors. If the results hold up across multiple trials, scientists gain confidence that the finding is reliable and valid, not just a one-time fluke. Replication also helps spot any problems in the procedure or equipment and shows that conclusions hold under ordinary conditions, not just by chance. The other options don’t fit because extending results to unrelated fields isn’t the purpose of repeating experiments, funding isn’t a scientific reason for repetition, and making things more complicated isn’t the goal of good science.

Repeating experiments is all about trust in the results. When scientists redo an experiment, they check whether the same outcome happens again, which helps reduce random mistakes and measurement errors. If the results hold up across multiple trials, scientists gain confidence that the finding is reliable and valid, not just a one-time fluke. Replication also helps spot any problems in the procedure or equipment and shows that conclusions hold under ordinary conditions, not just by chance. The other options don’t fit because extending results to unrelated fields isn’t the purpose of repeating experiments, funding isn’t a scientific reason for repetition, and making things more complicated isn’t the goal of good science.