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http://hdl.handle.net/1942/12928
Title: | Sensitivity analysis for incomplete continuous data | Authors: | Poleto, Frederico Z. MOLENBERGHS, Geert Paulino, Carlos Daniel Singer, Julio M. |
Issue Date: | 2011 | Publisher: | SPRINGER | Source: | TEST, 20(3), p. 589-606 | Abstract: | Models for missing data are necessarily based on untestable assumptions whose effect on the conclusions are usually assessed via sensitivity analysis. To avoid the usual normality assumption and/or hard-to-interpret sensitivity parameters proposed by many authors for such purposes, we consider a simple approach for estimating means, standard deviations and correlations. We do not make distributional assumptions and adopt a pattern-mixture model parameterization which has easily interpreted sensitivity parameters. We use the so-called estimated ignorance and uncertainty intervals to summarize the results and illustrate the proposal with a practical example. We present results for both the univariate and the multivariate cases. | Notes: | [Poleto, Frederico Z.; Singer, Julio M.] Univ Sao Paulo, Inst Matemat & Estatist, BR-05314970 Sao Paulo, Brazil. [Molenberghs, Geert] Univ Hasselt, I BioStat, B-3590 Diepenbeek, Belgium. [Molenberghs, Geert] Katholieke Univ Leuven, B-3000 Louvain, Belgium. [Paulino, Carlos Daniel] Univ Tecn Lisbon, Inst Super Tecn, P-1049001 Lisbon, Portugal. [Paulino, Carlos Daniel] CEAUL FCUL, P-1049001 Lisbon, Portugal. fpoleto@ime.usp.br; geert.molenberghs@uhasselt.be; dpaulino@math.ist.utl.pt; jmsinger@ime.usp.br | Keywords: | Identifiability; Ignorance interval; Missing data; Pattern-mixture model; Uncertainty interval;identifiability; ignorance interval; missing data; pattern-mixture model; uncertainty interval | Document URI: | http://hdl.handle.net/1942/12928 | Link to publication/dataset: | https://www.researchgate.net/publication/225566053_Sensitivity_analysis_for_incomplete_continuous_data | ISSN: | 1133-0686 | e-ISSN: | 1863-8260 | DOI: | 10.1007/s11749-010-0219-x | ISI #: | 000297125000012 | Rights: | © Sociedad de Estadística e Investigación Operativa 2010 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2012 |
Appears in Collections: | Research publications |
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a.pdf Restricted Access | Published version | 612.17 kB | Adobe PDF | View/Open Request a copy |
PoletoMolenberghsPaulinoSinger2010Submitted.pdf | Peer-reviewed author version | 315.52 kB | Adobe PDF | View/Open |
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