There is a well established theoretical base for many of the methodological aspects of nursing research1,2,3. Researchers have explored measurement tools, design of studies, methods of data collection and analysis, but the question of recruitment of participants to a research project remains a neglected area despite the profound influence it can have on the success or failure of that project. A research project into the management of challenging behaviour in children with learning disabilities (being conducted at Hull University) provides a case study as a means of exploring and illustrating the potential problems of recruitment. This paper then identifies general guidelines that researchers can adopt for effective recruitment strategies. The conclusions drawn emphasise that recruitment is an important element of the research process and deserves careful attention in the initial planning phases of a study to ensure its completion.