found: Work cat.: Celis, L.E. Snowball sampling a social network, 2008:p. 1 (snowball sampling; in this technique, existing subjects recruit future subjects, thus creating a "snowball effect" as the process continues)
found: Wikipedia, Oct. 28, 2008(Snowball sampling; in social science research, snowball sampling is a technique for developing a research sample where existing study subjects recruit future subjects from among their acquaintances. Thus the sample group appears to grow like a rolling snowball. As the sample builds up you gain enough data to use for your research. This sampling technique is often used in hidden populations which are difficult for researchers to access)
found: MathSciNet, Oct. 28, 2008(snowball sampling)
notfound: Wolfram MathWorld Web site, Oct. 28, 2008
