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

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

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

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