Social workers are involved in the recruitment of research participant
s in a variety of ways. Increased knowledge regarding recruitment issu
es will allow social workers to expand their role and improve their pe
rformance in this area. These individuals should be aware that there i
s a large body of literature addressing recruitment. This selective re
view of the literature prior to mid-1992 will focus on the Coronary Pr
imary Prevention Trial, volunteer effects, recruitment sources, the re
cruitment process, impediments to recruitment, bias in recruitment, th
e amount of time required to recruit and the impact of recruitment and
participation on individuals. This will be followed by a discussion o
f issues to be addressed in arriving at solutions to recruitment probl
ems.