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Checking Normality in R with swirl

By Bill Morgan

The College of Wooster

How to use the "three-prong" approach to check for normality

Listed in Teaching Materials | resource by group Teaching with R in Undergraduate Biology

Version 1.0 - published on 13 Jan 2020 doi:10.25334/PQ79-N018 - cite this

Licensed under CC Attribution-ShareAlike 4.0 International according to these terms


This lesson introduces students to the three-pronged approach for checking normality. During the lesson, students visualize the distribution of a continuous numerical variable in a biological data set using histograms and normal quantile plots, and perform a goodness-of-fit test. By comparing their outputs to a known normally distributed variable, students are able to correctly interpret the results of this three-pronged approach when working with data that deviates from a normal distribution.


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Teaching with R in Undergraduate Biology

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