Social media–based groups offer a rich opportunity for nurse researchers to connect with potential study participants. However, as the authors discovered from recruitment of acute respiratory distress syndrome survivors in social media–based survivorship groups, there is a risk of enrollment of both false and duplicate participants. Nurse researchers should adopt best practices to screen out false participants and prevent duplicate participation. Lessons learned from recruitment in social media groups include avoiding the use of survey links, requiring video interviews or home visits for confirmation of identity, adoption of strategic screening questions, and avoidance of international groups (unless the aim is to recruit foreign nationals). Adoption of these practices can help to ensure that the data collected from group patrons are trustworthy. Nurses who read research and adopt findings into practice should critically examine if researchers implemented strategies to screen out false and duplicate participants to protect data integrity.