How to interpret Repeated Measures Anova Example Table

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deejt 2021-5-31

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评论： deejt 2021-6-3

Hello community,

I have a specific question to the Matlab example of repeated measures anova. Its the first example Repeated Measures Analysis of Variance with fisheriris

https://www.mathworks.com/help/stats/repeatedmeasuresmodel.ranova.html#bt42zie-A

The following is the output table. Now I was wondering, what is the difference between the rows "(Intercept):Measurements" and "species:Measurements" and how would I interpret the two rows?

Thank you for your help!

ranovatbl=3×8 table

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Answer 1

Jeff Miller 2021-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/844185-how-to-interpret-repeated-measures-anova-example-table#answer_714010

(Intercept):Measurements is the "main effect" of measurement type--a factor with 4 levels in this example (i.e. length and width of sepals and petals). The significant F for this line indicates that the average values of these 4 types of measurements differ.

species:Measurements is the term for the interaction of species by measurements. The significant F for this line means that the patterns of differences among the 4 measurement types differ across the three species. Equivalently, it means that the pattern of differences among the three species differ across the four measurement types.