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Vicente, P. & Reis, E. (2009). The mobile-only population in Portugal and its impact in a dual frame telephone survey. Survey Research Methods. 3 (2), 105-111
P. A. Duarte and E. D. Reis, "The mobile-only population in Portugal and its impact in a dual frame telephone survey", in Survey Research Methods, vol. 3, no. 2, pp. 105-111, 2009
@article{duarte2009_1732200429871, author = "Vicente, P. and Reis, E.", title = "The mobile-only population in Portugal and its impact in a dual frame telephone survey", journal = "Survey Research Methods", year = "2009", volume = "3", number = "2", doi = "10.18148/srm/2009.v3i2.1708#sthash.YBnTkLZU.dpuf", pages = "105-111", url = "https://ojs.ub.uni-konstanz.de/srm/index" }
TY - JOUR TI - The mobile-only population in Portugal and its impact in a dual frame telephone survey T2 - Survey Research Methods VL - 3 IS - 2 AU - Vicente, P. AU - Reis, E. PY - 2009 SP - 105-111 SN - 1864-3361 DO - 10.18148/srm/2009.v3i2.1708#sthash.YBnTkLZU.dpuf UR - https://ojs.ub.uni-konstanz.de/srm/index AB - In 2007 the percentage of mobile-only households in Portugal reached 36%; this is one of the highest levels in EU27 countries according to the EU E-Communications Households Survey. To assess the extent and nature of the potential bias in fixed phone surveys created by the absence of mobile-only households, a dual frame survey was conducted in which both fixed phones and mobile phones were used to collect data. There are significant differences between fixed phone respondents and mobile-only respondents in several demographic variables; however, we find that merging the fixed phone and the mobile-only sample produces general population estimates on substantive variables that are not significantly different from those obtained with the fixed phone sample alone. ER -