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Compensating for low topic interest and long surveys: a field experiment on nonresponse in web surveys [journal article]
Source: Social Science Computer Review, 25 (2007) 3. p.372-383
Prenotification in web-based access panel surveys: the influence of mobile text messaging versus e-mail on response rates and sample composition [journal article]
Source: Social Science Computer Review, 26 (2008) 2. p.213-223