In this article, I will summarize the chapter of our text, “Recruitment and Retention of Study Participants” (Cook, 2010) and the article “Developing Relationships and Retaining Participants in a longitudinal study” ( Adamson and Chojeta, 2007 ) compare the two and summarize my findings. In “Recruitment and Retention of Study Participants” (Cook, 2010), the authors discuss issues regarding study participants in assessments. Issues include the importance of early planning, particularly defining the target population while considering data collection modes and where to collect data and conduct pretesting. Also discussed are institutional review boards and the Office of Management and Budget. The authors cover the importance of staff recruitment and retention, including staff backgrounds, interpersonal qualities, communication skills, and staff training and supervision. The text then moves to the implementation of recruitment and retention, including modes of contact for recruitment and retention, primarily letters and phone calls. One of the specialty areas covered is recruitment and retention efforts in a healthcare setting. It's also about gaining the cooperation of participants, which may include diagnosing objections, providing answers to frequently asked questions, and using incentives. There is a discussion of specific retention considerations, tracking progress in recruitment and retention, tracking multiple recruitment strategies. Another specialty area addressed is monitoring recruitment and retention of subpopulations and finally cultural considerations. The authors concluded that time and attention were required to plan and implement participant recruitment and retention. In the article "Developing relationships and ...... in the middle of the article ...... about how to meet the needs of long-term study participants to maintain flow information needed and how to personalize the experience for participants. Reading both sources allowed me to see that from planning and staffing through implementation and completion of the study, ensuring that you communicate in a respectful and Mindful with your participants, answering their questions and meeting their needs, you will be more likely to succeed in your study. CitéAdamson, L. and Chojeta, C. (2007). Developing relationships and retaining participants in a longitudinal study. International Journal of Multiple Research Approaches, 137 – 146. Cook, SC (2010). Recruitment and retention of study participants. In J. S. Holey, Handbook of Practical Program Evaluation (3rd ed., pp. 182 - 207). San Francisco, California, United States of America: Jossey-Bass.