Read the scenario below and answer the question that follows. A researcher wants to observe the playground behavior of preschoolers. In order to conduct the experiment, video cameras are secretly placed in several areas of the playground. The researcher is conducting the research by using which descriptive research method?

Naturalistic observation involves watching and recording behavior in its usual setting without intervening. The researcher secretly records preschoolers on their playground, so the method is naturalistic observation. A longitudinal study follows people over time, while a case study examines one person or a small group in depth.

AI-written and checked against the verified answer.