Hits 1-3 within 3 documents
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
An evaluation of the weighting procedures for an online access panel survey [journal article]
Source: Survey Research Methods, 2 (2008) 2. p.93-105
Are 'Webographic' or attitudinal questions useful for adjusting estimates from Web surveys using propensity scoring? [journal article]
Source: Survey Research Methods, 1 (2007) 3. p.155-163