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Mean Centering


Hofer, Matthias (2017). Mean Centering. In: Matthes, Jörg. The International Encyclopedia of Communication Research Methods. Hoboken, USA: Wiley, 1-3.

Abstract

Mean centering is an additive transformation of a continuous variable. It is often used in moderated multiple regression models, in regression models with polynomial terms, in moderated structural equation models, or in multilevel models. Mean centering has been offered as a remedy for problems of collinearity in moderated multiple regression models or in polynomial regression models. But, mean centering does not reduce essential collinearity due to substantial relationships between variables. However, for the sake of interpretability of results it is recommended that researchers center predictor variables when their variables do not have meaningful zero points. Mean centering in multilevel models is more complex, as two types of mean centering are available.

Abstract

Mean centering is an additive transformation of a continuous variable. It is often used in moderated multiple regression models, in regression models with polynomial terms, in moderated structural equation models, or in multilevel models. Mean centering has been offered as a remedy for problems of collinearity in moderated multiple regression models or in polynomial regression models. But, mean centering does not reduce essential collinearity due to substantial relationships between variables. However, for the sake of interpretability of results it is recommended that researchers center predictor variables when their variables do not have meaningful zero points. Mean centering in multilevel models is more complex, as two types of mean centering are available.

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Additional indexing

Item Type:Book Section, refereed, original work
Communities & Collections:06 Faculty of Arts > Department of Communication and Media Research
Dewey Decimal Classification:700 Arts
Language:English
Date:2017
Deposited On:16 Jan 2018 10:58
Last Modified:19 Feb 2018 10:25
Publisher:Wiley
ISBN:978-1-118-90176-2
OA Status:Closed
Publisher DOI:https://doi.org/10.1002/9781118901731.iecrm0137
Related URLs:https://www.recherche-portal.ch/ZAD:default_scope:ebi01_prod011069005 (Library Catalogue)

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