David, a school psychologist, considers each child's social and cultural background when assessing his or her development. David is MOST likely working within the perspective.

sociocultural.

Explanation:

Sociocultural Perspective is a theory used in fields such as psychology and is used to describe awareness of circumstances surrounding individuals and how their behaviors are affected specifically by their surrounding, social and cultural factors.

According to Catherine A. Sanderson (2010) “Sociocultural perspective: A perspective describing people’s behavior and mental processes as shaped in part by their social and/or cultural contact, including race, gender, and nationality.” Sociocultural perspective theory is a broad yet significant aspect in our being.