Amostragem para modos mistos de pesquisa: Web e telefone

Abstract

Data collection plays a fundamental role in research, shaping the quality and way in which the results of a study are presented. One of the most important decisions in research, therefore, is the choice of which sampling method to use for data collection, since all options have their own disadvantages and benefits. With this in mind, the aim of this study was to review the accuracy and performance of mixed sampling methods, focusing on online and telephone interviews, comparing their bias in application and response. A range of parameters were used to judge the two methods; including the analysis of response rates in different cases over the years, the costs involved in both methods, the time spent to complete the collection, and combinations of different methods simultaneously. We also conducted an experiment involving two samples of schools in the Zona da Mata Mineira, from which we compared the quality of responses to questionnaires applied by e-mail and by telephone in relation to data from the Educational Census made available by INEP.