Universität zu Köln

Becker, Dominik ORCID: 0000-0001-6373-3664, Breustedt, Wiebke and Zuber, Christina Isabel (2018). Surpassing Simple Aggregation: Advanced Strategies for Analyzing Contextual-Level Outcomes in Multilevel Models. Methods Data Anal., 12 (2). S. 233 - 265. COLOGNE: GESIS LEIBNIZ INST SOCIAL SCIENCES. ISSN 2190-4936

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Abstract

This article introduces two advanced analytical strategies for analyzing contextual-level outcomes in multilevel models: the multilevel SEM and the two-step approach. Since these strategies are seldom used in comparative survey research, we first discuss their methodological and statistical advantages over the more commonly applied approach of group mean aggregation. We then illustrate these advantages in an empirical analysis of the effect of citizens' support for democratic values at the individual level on a contextual-level outcome - the persistence of democracy - drawing on data from the World Values Survey and the Quality of Government project. Whereas we found no significant effect of support for democratic values in the model using simple group mean aggregation, citizens' support for democratic values was a significant predictor of democracies' estimated survival rate when applying latent aggregation in multilevel SEM and the two-step approach. The article corroborates previous concerns with simple aggregation and demonstrates how researchers can improve the validity of their analyses of contextual-level outcomes by using alternative strategies of aggregation.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Becker, Dominik UNSPECIFIED orcid.org/0000-0001-6373-3664 UNSPECIFIED Breustedt, Wiebke UNSPECIFIED UNSPECIFIED UNSPECIFIED Zuber, Christina Isabel UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-202546
DOI:	10.12758/mda.2017.05
Journal or Publication Title:	Methods Data Anal.
Volume:	12
Number:	2
Page Range:	S. 233 - 265
Date:	2018
Publisher:	GESIS LEIBNIZ INST SOCIAL SCIENCES
Place of Publication:	COLOGNE
ISSN:	2190-4936
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INDIVIDUAL-LEVEL; DEMOCRACY Multiple languages Social Sciences, Mathematical Methods Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/20254