The question asks for the term used in psychology to describe the study of an individual or a single case.
Different research approaches exist in psychology:
The description "psychological study of the single case" directly aligns with the definition of theidiographic approach. This method emphasizes depth and detail for one specific subject, rather than breadth across many.
Therefore, the psychological study focusing on a single case is termed the idiographic approach.
| LIST-I (Concepts) | LIST-II (Meanings) |
| A. Theory | I. Generalized representations of a system or an object, that is constructed to some aspects of that system or the system as a whole. |
| B. Model | II. Research problem is represented by a mathematical model. |
| C. Survey | III. It is a set of systematically interrelated propositions that explain and predict a phenomenon or a fact. |
| D. Modeling | IV. It is a data collection technique using a questionnaire. |