Answer:
self-administered
Step-by-step explanation:
Self-administered survey: In research methods, the term "self-administered survey" is described as one of the different survey methods that are being designed in a structured form and consists of a specific series of different "open-ended" and "closed-ended" questions. However, it is being denoted as "self-administered" because the respondents or the participants of the survey fill the given questionnaire themselves, in the absence of any interviewer.
In the question above, the given statement is an example of a self-administered survey.