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Diaz de Rada, Vidal; Domínguez, Juan Antonio – International Journal of Social Research Methodology, 2015
This paper analyses the quality of information collected by a self-administered survey responded to by a general population, who were offered the possibility of answering using the post or Internet. The analysis will be focused on the use of three grid questions with using rating scales with 6, 6 and 8 items, respectively. There was a polar point…
Descriptors: Online Surveys, Questionnaires, Mail Surveys, Internet