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1.
24 p, 517.9 KB Efficiency of propensity score adjustment and calibration on the estimation from non-probabilistic online surveys / Ferri-García, Ramón (Universidad de Granada. Departamento de Estadística e Investigación Operativa) ; Rueda, Maria del Mar (Universidad de Granada. Departamento de Estadística e Investigación Operativa)
One of the main sources of inaccuracy in modern survey techniques, such as online and smartphone surveys, is the absence of an adequate sampling frame that could provide a probabilistic sampling. This kind of data collection leads to the presence of high amounts of bias in final estimates of the survey, specially if the estimated variables (also known as target variables) have some influence on the decision of the respondent to participate in the survey. [...]
2018 - 10.2436/20.8080.02.73
SORT : statistics and operations research transactions, Vol. 42 Núm. 2 (July-December 2018) , p. 159-182 (Articles)  
Detailed record - Creative Commons
2.
28 p, 230.5 KB Multinomial logistic estimation in dual frame surveys / Molina Muñoz, David (Universidad de Granada. Departamento de Estadística e Investigación Operativa) ; Rueda, Maria del Mar (Universidad de Granada. Departamento de Estadística e Investigación Operativa) ; Arcos, Antonio (Universidad de Granada. Departamento de Estadística e Investigación Operativa) ; Ranalli, Maria Giovanna (Università di Perugia. Department of Political Sciences)
We consider estimation techniques from dual frame surveys in the case of estimation of proportions when the variable of interest has multinomial outcomes. We propose to describe the joint distribution of the class indicators by a multinomial logistic model. [...]
2015
SORT : statistics and operations research transactions, Vol. 39 Núm. 2 (July-December 2015) , p. 309-336 (Articles)  
Detailed record - Creative Commons

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