Bring More Data!—A Good Advice? Removing Separation in Logistic Regression by Increasing Sample Size

The parameters of logistic regression models are usually obtained by the method of maximum likelihood (ML). However, in analyses of small data sets or data sets with unbalanced outcomes or exposures, ML parameter estimates may not exist. This situation has been termed ‘separation&#8217...

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Bibliographic Details
Main Authors: Hana Šinkovec, Angelika Geroldinger, Georg Heinze
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:International Journal of Environmental Research and Public Health
Subjects:
Online Access:https://www.mdpi.com/1660-4601/16/23/4658