# Thread: How to prove the we have very similar 2 tests grades ?

1. ## How to prove the we have very similar 2 tests grades ?

Hi,

If we students grades in test 1 and 2
Test1 - Test2
100 - 100
99 - 99
98 - 98
97 - 98
96 - 95
95 - 93

How to show that these 2 tests are similar? show that there is no significance difference between 2 tests and then show that they have high Spearman correlation?

Many thanks

2. ## Re: How to prove the we have very similar 2 tests grades ?

Hey zia.

Have you heard of the Pearson Chi-Square test?

Pearson's chi-squared test - Wikipedia, the free encyclopedia

3. ## Re: How to prove the we have very similar 2 tests grades ?

Chi-square can't solve this numerical , since it needs ordinal data.