Hits 1-2 within 2 documents
Nonresponse in the recruitment of an internet panel based on probability sampling [journal article]
Source: Survey Research Methods, 3 (2009) 2. p.59-72
Impact of mixed survey modes on physical activity and fruit/ vegetable consumption: a longitudinal study [journal article]
Source: Survey Research Methods, 3 (2009) 2. p.81-90