A researcher conducts a study where she divides subjects into two groups,gives each group a certain treatment, and records their responses.What type of data collection is being used here?

A) An experiment.
B) Direct observation.
C) A survey.
D) A census.

Learning Objectives

• Discern the contrasting methodologies and applications inherent to observational and experimental studies.
• Distinguish among diverse data gathering methods such as surveys, experiments, and direct observations, and understand the appropriate contexts for their application.