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Ignoring the Non-ignorables? Missingness and Missing Positions


König, Thomas; Finke, Daniel; Daimer, Stephanie


Bitte beziehen Sie sich beim Zitieren dieses Dokumentes immer auf folgenden Persistent Identifier (PID):http://nbn-resolving.de/urn:nbn:de:0168-ssoar-228870

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Abstract Missing or incomplete data on actors’ positions can cause significant problems in political analysis. Research on missing values suggests the use of multiple imputation methods rather than case deletion, but few studies have yet considered the non-ignorable problem - positions that are hidden for strategic purposes. We examine this problem and discuss the advantages and drawbacks of (i) multiple imputation as implemented in AMELIA; (ii) a computationally easy but, in the context of spatial modelling, straightforward measure of indifference and (iii) a conditional averaging algorithm, LDM, which seeks to reasonably fix actors’ positions in the policy space pre- and post-imputation. The analysis suggests that actors biased by the status quo strategically hide their more supportive positions. Although none of the existing methods - which produce quite different results - is perfectly suited for imputing hidden positions, LDM has the highest hit rate for the conjectured more supportive position.
Klassifikation Erhebungstechniken und Analysetechniken der Sozialwissenschaften; politische Willensbildung, politische Soziologie, politische Kultur
Freie Schlagwörter EU Constitution; imputation; missing values; strategic positions;
Sprache Dokument Englisch
Publikationsjahr 2005
Seitenangabe S. 269-290
Zeitschriftentitel European Union Politics, 6 (2005) 3
DOI http://dx.doi.org/10.1177/1465116505054833
Status Postprint; begutachtet (peer reviewed)
Lizenz PEER Licence Agreement (applicable only to documents from PEER project)