Which of the following explains why randomized controlled trials are often “double blind”? To allow for genuine observations, since no researcher knows which participants are receiving the treatment and which are not. To decrease bias by ensuring both the participants and researchers do not know who is receiving the treatment and who is not. To increase bias by ensuring both the participants and researchers do not know who is receiving the treatment and who is not. To allow for subjectivity, as the participants who believe they are all taking the treatment will report that they are feeling better or worse.