Assessment of the Web Index. Survey questionnaire calibration and uncertainty analysis.
This study contains the assessment of the Web Index 2011 (WI), published by the World Wide Web Foundation in September 2012. The Index, calculated for 61 countries, is composed by 85 indicators and uses both survey and hard data. We analyse both the survey questions with the aim of checking the statistical consistency of survey answers and the WI in order to evaluate its robustness vis à vis some of its main methodological assumptions.
Our analysis of primary data provides survey designers with some insights into possible problematic questions and/or unexpectedly behaving countries. In particular we check for category redundancy in the questions, unexpected answers in some questions and/or by some countries, the relative difficulty of the questions and the validity of the selected framework. The second part of the analysis contains the robustness analysis of the WI. To this purpose 6 alternative scenarios are simulated each challenging one particular assumption made in the WI: from different aggregation methods to different weighting schemes. Overall, despite its multifaceted structure, the wide coverage of different countries and the fact that it includes both survey and quantitative data, the index turned out to be robust from the statistical point of view.
ANNONI Paola;
WEZIAK-BIALOWOLSKA Dorota Maria;
NARDO Michela;
2012-09-20
Publications Office of the European Union
JRC73977
978-92-79-25988-3,
1831-9424,
EUR 25476 EN,
OP LB-NA-25476-EN-N,
https://publications.jrc.ec.europa.eu/repository/handle/JRC73977,
10.2788/43830,
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