Forfatter av avsnitt: Danielle J. Navarro and David R. Foxcroft

Sammendrag

There is a fair bit covered in this chapter, but there is still a lot missing. Most obviously, I have not discussed how to run an ANOVA when you are interested in more than one grouping variable, but that will be discussed in a lot of detail in chapter Faktoriell ANOVA. In terms of what we have discussed, the key topics were:

• Den grunnleggende logikken bak hvordan ANOVA fungerer og hvordan du kjører en ANOVA i jamovi.

• Slik beregner du en effektstørrelse for en ANOVA.

• Post-hoc-analyse og korreksjoner for multippel testing.

• The forutsetningene for ANOVA: Hvordan du undersøker forutsetningen om varianshomogenitet og hva du skal gjøre hvis den brytes, samt hvordan du undersøker forutsetningen om normalfordeling og hva du skal gjøre hvis den brytes.

• Repeated measures ANOVA og dens ikke-parametriske ekvivalent, Friedman-test.

As with all of the chapters in this book, there are quite a few different sources that I have relied upon, but the one stand-out text that I have been most heavily influenced by is Sahai and Ageel (2000). It is not a good book for beginners, but it is an excellent book for more advanced readers who are interested in understanding the mathematics behind ANOVA.