Applying the t-test
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Fortunately, the t-test calculations can be modified for the cases when the assumption of equal variances across groups is violated. In other words, Welch's version of the t-test accounts for unequal variances. This video demonstrates the test application in R and the relevant options for implementing it.
Source: S.Baskauf, https://www.youtube.com/watch?v=BdaM0ZkC7Vs
This work is licensed under a Creative Commons Attribution 3.0 License.
Last modified: Friday, 16 December 2022, 12:33 PM