Ferguson et al.’s (2012) study of employment and income generation for homeless young adults recruited participants “from the host agencies using similar methods” in each of the five cities. “Researchers approached potential young-adult participants within the host agencies (or in street-outreach locations with agency outreach staff)” (390). What sampling method best articulates the sampling method used by Ferguson et al.?
a. probability sampling
b. availability sampling
c. cluster sampling
d. nonprobability sampling
e. snowball sampling
