Pasted image 20240123095906Pasted image 20240123095923 One-tailed positive:希望证明x>0,否定x0 One-tailed negative:希望证明x<0,否定x>=0 Two-tailed:希望证明x!=0

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Test typeIntroExampleComment
Paired t testPasted image 20240123101515Pasted image 20240123101644
Unpaired t testPasted image 20240123101418Pasted image 20240123101451
ANOVAPasted image 20240123102801Pasted image 20240123102834
Mann-Whitney testPasted image 20240123101801Pasted image 20240123101831
Wilcoxon testPasted image 20240123102107Pasted image 20240123102134
Kruskal-Wallis testPasted image 20240123103120
Fisher’s testPasted image 20240123103847
Chi-square testPasted image 20240123103206Pasted image 20240123103353

不论是t还是p,算出来的如果小于它规定的,就可以Reject H0。如果大于它规定的,就维持H0

如果确定是什么分布non-parametric (因为sample太小,或者nominal data等原因,无法确定是什么分布)
paired t (一个participant使用所有method)Wilcoxon
unpaired tMann-Whitney
ANOVAKruskal-Wallis
如果是categorical data: Chi 2

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Likert scale=ordinal