Applying the t-test

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
Creative Commons License This work is licensed under a Creative Commons Attribution 3.0 License.

Last modified: Friday, December 16, 2022, 12:33 PM