UPM Institutional Repository

Importance of assessing the model adequacy of binary logistic regression.


Sarkar, S.K. and Midi, Habshah (2010) Importance of assessing the model adequacy of binary logistic regression. Journal of Applied Sciences, 10 (6). pp. 479-486. ISSN 1812-5654


Logistic regression is a sophisticated statistical tool for data analysis in both control experimentation and observational studies. The goal of logistic regression is to correctly predict the category of outcome for individual cases using the most parsimonious model. To accomplish this goal, a model is created that includes all predictor variables that are useful in predicting the response variable. The logistic regression model is being used with increasing rate in various fields in data analysis. In spite of such increase, there has been no commensurate increase in the use of commonly available methods for assessing the model adequacy. Failure to address model adequacy may lead to misleading or incorrect inferences. Therefore, the goal of this study is to present an overview of a few easily employed methods for assessing the fit of logistic regression models. The summary measures of goodness-of-fit as Likelihood Ratio Test, Hosmer-Lemeshow goodness-of-fit test, Osius-Rojek large sample approximation test, Stukel test and area under Receiver Operating Characteristic curve indicate that the logistic regression model fits the data quite well. However, recommendations are made for the use of methods for assessing the model adequacy in different aspects before proceed to present the results from a fitted logistic regression model.

Download File

Full text not available from this repository.

Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute for Mathematical Research
DOI Number: https://doi.org/10.3923/jas.2010.479.486
Publisher: Asian Network for Scientific Information
Keywords: Binary response variable; Covariate pattern; Sensitivity; Specificity; ROC curve.
Depositing User: Najwani Amir Sariffudin
Date Deposited: 08 Nov 2013 07:03
Last Modified: 08 Nov 2013 07:03
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3923/jas.2010.479.486
URI: http://psasir.upm.edu.my/id/eprint/15127
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item