English
self-report
From self- + report.
The story
Noun sense 2 was coined by players of Among Us, in which the impostor can report the body of another player they have just killed, as if having just discovered it guiltlessly.
Today it means
noun A kind of survey or questionnaire in which respondents read the questions and select responses by themselves, without researcher interference.
Language periods are conventional ranges, not dates for this word.
Etymograph / self-report