Respuesta :
Answer: Participant
Explanation:
Full participant or complete participant is the person who is completely attached researcher of the experiment or study.This researcher is immersed in experiment completely such that participants aren't aware that research is being conducted on them while interacting and observing with researcher .
According to the question,if any researcher is acting as complete participants then other participants involved in the study do not have hint about researcher. They don't behave as researcher during study with participants and thus, others see researcher as participant.
The correct answer is participant
Explanation: In this case the full participant cannot let people discover that it is the full participant and this makes them act as if they were a normal research participant, which is a difficult job because you must be very careful so that the other participants do not realize that one who looks like a normal participant is actually not.