Recruitment and retention in clinical and experimental bereavement research: Lessons learned from creating a research registry.

A small body of research investigates recruitment and retention of bereaved people in experimental and intervention research. The present study compares the effectiveness of different recruitment strategies implemented by a grief laboratory at a large state university in order to optimize recruitment efforts. The most effective method is letters sent to bereaved community members identified through online newspaper obituaries. Despite a small overall response rate, the large population from which to sample provides continuous accrual every month. Other methods include electronic/print media, community institution referrals, word of mouth and community outreach. Best practices for recruitment and retention are recommended.