WebPA uses student marks to generate a WebPA score for each student in the group. These scores show their relative contribution to the project. Tutors generate individual marks by setting a WebPA weighting when they generate a "mark sheet". This slidedeck works through an example showing the effect of different WebPA weightings.

1. WebPA algorithm
Worked example
• 6 Students on a group project
• Overall group score is 60%

3. Relative Contributions

4. But
• Student 1 was the group star
• Student 6 did very little
• The others put in an average performance

5. Revised Relative Contributions

6. WebPA Score
• All 6 students have a
WebPA Score = 1

7. Our Example:
• Student 1’s WebPA
score is 1.67
• Students 2-5 have a
score of 1
• student 6 has a low
score of 0.33.

8. Individual Marks

9. Mark Sheets use a WebPA Weighting
100% WebPA weighting
Individual score = WebPA weighting X Group
Score

10. 100% WebPA
• Student1’s score becomes 1.67 x 60 = 100.2
(which WebPA rounds down to 100).
• Students2-5 score 1 X 60 = 60
• Student6’s score becomes 0.33 X 60 = 19.8

11. 100% Weighting = maximum range

12. 50% WebPA weighting
students’ scores become
(50% X Group Score) + (50% X Group Score X
WebPA score)

13. 50% WebPA weighting
• Student1 score is then
– (50% X 60) + (50% x1.67 X 60) = 80
• Student2-5 score is
– (50% x 60) + (50% x 1 x 60) = 60
• Student6 score is
– (50% X 60) + (50% X 0.33 X 60) = 40

14. 50% WebPA weighting

15. For Lower WebPA Weightings
• Students receive a larger proportion of the
group marks
• The range of scores is lower

16. 20% WebPA Weighting

17. Key points
• WebPA uses your assessment form to work
out Relative contributions
• WebPA Scores vary around an average of 1
• You decide the WebPA weighting to apply
when you generate mark sheets.
• Higher WebPA weightings give greatest
variance

18. Student Marks
• This example is based on an artificial scoring
grid:
Student1 Student2 Student3 Student4 Student5 Student6
Student1 5 3 3 3 3 1
Student2 5 3 3 3 3 1
Student3 5 3 3 3 3 1
Student4 5 3 3 3 3 1
Student5 5 3 3 3 3 1
Student6 5 3 3 3 3 1