Can you please help me find the suitable statistical tests for my study in Agricultural field
I have two treatment : the first treatment has 4 levels of doses, the second treatment : has two levels of doses. There's 4 blocks (4 replicates)
Is two-way ANOVA then tukey's test good for this study ?
Yes, a two-way ANOVA followed by Tukey’s test would be a suitable approach for analyzing the data from your agricultural study. A two-way ANOVA is used to estimate how the mean of a quantitative variable changes according to the levels of two categorical variables1. In your case, you have two treatments, each with different levels of doses, and you want to know how these treatments affect the dependent variable (e.g., crop yield). After performing the two-way ANOVA, if you find that there is a significant interaction between the two treatments, you can follow up with Tukey’s test to determine which specific means differ from each other2.
1. https://www.scribbr.com/statistics/two-way-anova/
2. https://stats.libretexts.org/Bookshelves/Advanced_Statistics/Analysis_of_Variance_and_Design_of_Experiments/02%3A_ANOVA_Foundations/2.03%3A_Tukey_Test_for_Pairwise_Mean_Comparisons
Ivan Namakoola Thank you so much sir, I tried 3 different post hoc analyses (Tukey, Duncan, and Fischer's Protected LSD test), and they gave similar results with slight differences, What's the suitable hoc analysis among these 3 tests?
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