Which term refers to the reproduction of a scientific investigation by another person to ensure accuracy?

• A. Experiment
• B. Observation
• C. Replication
• D. Hypothesis

Answer: (C)

Reproducibility through replication is about confirming findings by having another researcher perform the same study and see if the results align. This ensures the results aren’t due to random chance, a specific researcher’s methods, or a particular set of conditions. When replication yields similar outcomes, it strengthens confidence in the result and the conclusion drawn from the original investigation.

An experiment is the process of testing a specific idea by manipulating variables and observing effects. Observation is simply noticing and recording what happens, without trying to change conditions. A hypothesis is a testable statement or educated guess about the relationship between variables that a study aims to evaluate. Replication differs because its goal is to reproduce the entire investigation to verify accuracy, not to conduct a new test or merely describe phenomena.