In this article I will summarize the chapter in our text "Recruiting and Retaining Study Participants" (Cook, 2010) and the article "Developing Relationships and Retaining Participants in a Longitudinal Study" ( Adamson & Chojeta, 2007) compare the two and summarize my findings. In “Recruitment and Retention of Study Participants” (Cook, 2010) the authors discuss issues concerning study participants in evaluations. Issues include the importance of advance planning, in particular defining the target population, examining how data will be collected and where to collect data and carry out pre-tests. Institutional review boards and the Office of Management and Budget will also be discussed. The authors address the importance of staff recruitment and retention, including staff background, interpersonal qualities, communication skills, and staff training and supervision. The text then moves on to the implementation of recruitment and retention, including contact methods for recruitment and retention, mainly letters and telephone calls. One of the specialty areas discussed involves recruitment and retention efforts in a healthcare setting. It's also about getting participants' cooperation, which can include diagnosing objections, answering frequently asked questions, and using incentives. We discuss specific retention considerations, tracking recruitment and retention progress, tracking multiple recruiting strategies. Another specialist area discussed is monitoring recruitment and maintenance of subpopulations and finally cultural considerations. The authors concluded that time and attention are needed to plan and implement participant recruitment and retention. term study participants to maintain the necessary flow of information and how to personalize the experience for participants. Reading the two sources allowed me to see that from planning and staffing through implementation and the end of the study, ensuring I communicate respectfully and mindfully with participants, answering their questions, and meeting their needs will be more likely that a study will be successful. Cited Adamson, L., & Chojeta, C. (2007). Developing relationships and retaining participants in a longitudinal study. International Journal of Multiple Research Approaches, 137 - 146.Cook, S.C. (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.