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chi squared
unrelated design, nominal data, test of association/correlation and difference
sign test
related design, nominal data
Mann-Whitney
ordinal data, unrelated design
wilcoxon
related design, ordinal data
spearman’s rho
test of association/correlation, ordinal data
unrelated T-test
interval data, unrelated design, parametric test
related t-test
interval data, related design, parametric test
Pearson’s r
test of association/correlation, interval data, parametric test