Sigmund freud developed his theory of human personality by conducting in-depth interviews over an extended period of time with a few clients. this type of research approach is known as a(n):
archival research
case study
naturalistic observation
survey

case study

Explanation:

Case study is a qualitative method that usually consists of a way of deepening an individual unit. It serves to answer questions that the researcher does not have much control over the phenomenon studied.

The case study contributes to a better understanding of the individual phenomena, the organizational and political processes of society. It is a tool used to understand the form and motives that led to a particular decision.

Using the case study, Sigmund Freud developed his theory of human personality by conducting detailed interviews over a long period of time with some clients.

"social stratification refers to the way people are ranked and ordered in society. in western societies, stratification is primarily seen and understood as a result of socioeconomic status, which produces a hierarchy in which access to resources, and possession of them, increases from the lower to the upper strata"

answer; i believe that the correct answer is ; the eastern and western churches spoke different languages;