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. 2015 Apr 11;8:141. doi: 10.1186/s13104-015-1062-7

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© Lazic; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Relationship between statistical models. T-tests, ANOVA, regression, and ANCOVA are all specific examples of linear models and have the same assumptions, including normally distributed data, homogeneity of variance, and independent observations. Generalised linear models include all linear models, but also include models that can handle other types of data. The mean-variance relationship will depend on the specific model. Note that all models assume that observations are independent [41].