The van der waerden test and welch's anova: a simulated study

In the undergraduate Brazilian courses, the approach to experimental statistics is reduced in the menu so that professors have time to explain all the content. However, some methodologies are not used, such as Welch's ANOVA and the van der Waerden test. The objective of this work is to present these two techniques that are neglected, however, can contribute to more robust analyzes in other experiments. Using the R program four treatment variables were simulated and the proposed tests were applied. The results showed that these two methods can be used as good alternative solutions when certain assumptions are violated. Thus, these two procedures could be mostly explored by university Brazilian professors.