An informant is a person who provides privileged information to an agency.
Informant may also refer to:
- Informant (linguistics), a native speaker who provides information about their language for linguistics study
- Informant (psychiatry), a third party who can report on a psychiatric case for a doctor
- Informant (statistics), the gradient of the log-likelihood function, also known as the score (function).
See also
Topics referred to by the same term
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