way to preserve the confidentiality of research participants.
Anonymity is guaranteed in a research project when neither the researchers nor the readers of the findings can identify a given response with a given respondent.
Other /More definition:
Anonymity when the Psychoanalysts present an anonymous front for the client, revealing nothing personal about themselves. With the therapist maintaining a blank slate, the client is free to project feelings from past relationships.
List of books: Anonymity