Ounderstand the unusual behavior of an adult client, a clinical psychologist carefully investigates the client's current life situation and his physical, social-cultural, and educational history. which research method has the psychologist used?

Understand the unusual behavior of an adult client, a clinical psychologist carefully investigates the client's current life situation and his physical, social-cultural, and educational history. This research method is called qualitative research method.

answer; ///he could not explain why the continents drifted;