# Which paper do students has better performance?

#### hssdav

##### New Member
I have a exam result grade (ABCDE) of a group of students in a subject and also the sub-grade of the paper 1 and paper 2 and paper 3. How can I know or compare which paper do they perform better and which paper hinder the performance?
(Assume paper 1/2/3 are equally important, but how about if they have different weights? )

#### hlsmith

##### Less is more. Stay pure. Stay poor.
Please provide some actual data so we can follow along or post the syllabus with the grading rubric.

#### hssdav

##### New Member
ID Final Grade Paper1 Paper2 Paper3
1. A. A. B. A
2. C. B. C. C.
3. B. B. B. C.
4. C. C. C. B.

the data is almost like that…..

#### hlsmith

##### Less is more. Stay pure. Stay poor.
How many students were there? You may be able to convert all of the grades to their numeric value - like when calculating GPA, then model: final grade = paper1 + paper2 + paper2 using Poisson model.

#### hssdav

##### New Member
How many students were there? You may be able to convert all of the grades to their numeric value - like when calculating GPA, then model: final grade = paper1 + paper2 + paper2 using Poisson model.
so what statistical test to be exact?

#### hlsmith

##### Less is more. Stay pure. Stay poor.
Poisson regression model and you would look at the model estimates for the three predictors. What is the sample size and distribution of grades?

#### hssdav

##### New Member
100 , quite normal , so the model estimates can tell the significance ?