ANONYMITY - __ participants know the purpose , benefits, risks, and funding behind the study before they agree or decline to join personally identifiable data is not collected researcher knows who the participants are but keeps that information hidden from everyone else participants are free to opt in or out of the study at any point in time

NONYMITY - In this type of study, participants know the purpose, benefits, risks, and funding behind the study before they agree or decline to join. Personally identifiable data is not collected, and the researcher knows who the participants are but keeps that information hidden from everyone else. Participants are free to opt in or out of the study at any point in time.