Answer:
Naturalistic observation
Step-by-step explanation:
If Deandre is conducting this type of research, he is engaging in naturalistic observation. Naturalistic observation is a research method that is commonly used in the social sciences, particularly psychology. The technique involves the observation of subjects in their natural environment. In this case, Deandre is observing children during recess, as the schoolyard can be considered the natural environment of children in modern times.