Hits 21-30 within 40 documents
Las encuestas previas a la elección presidencial 2006: reflexiones para el debate [journal article]
Source: Veredas: Revista del Pensamiento Sociológico, 8 (2007) 14. p.7-34
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
Errors depending on costs in sample surveys [journal article]
Source: Survey Research Methods, 1 (2007) 2. p.85-96