Question

A researcher tests a new toothpaste on a small sample of five volunteers.

After determining the results of the experiment, what should the researcher
do?
A. Replicate the experiment to see whether the results are similar

B. Make a commercial about the effectiveness of the new toothpaste

C. Publish his results

D. Come to a conclusion that the toothpaste is always effective

Answer 1

A. Replicate the experiment to see whether the results are similar

Explanation:

According to Oxford dictionary, an experiment is a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

It is best practice in science that an experiment is to be carried out three times before conclusion is made on the experiment and the results published.

An experiment is repeated three times due to the fact that a two-thirds (66%) probability of averaged results are more accurate than a single experiment.

An experiment is replicated (repeated) to establish a relationship between experiment results.

Replication lets scientists see patterns and trends in their experiment results.

A replicated experiment gives a scientist an affirmation on the results and gives more validity to the process and the results.