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# WebPA algorithm Part 1

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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.

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### WebPA algorithm Part 1

1. 1. WebPA algorithm Worked example • 6 Students on a group project • Overall group score is 60%
2. 2. Relative Contributions
3. 3. But • Student 1 was the group star • Student 6 did very little • The others put in an average performance
4. 4. Revised Relative Contributions
5. 5. WebPA Score • All 6 students have a WebPA Score = 1
6. 6. 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.
7. 7. Individual Marks
8. 8. Mark Sheets use a WebPA Weighting 100% WebPA weighting Individual score = WebPA weighting X Group Score
9. 9. 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
10. 10. 100% Weighting = maximum range
11. 11. 50% WebPA weighting students’ scores become (50% X Group Score) + (50% X Group Score X WebPA score)
12. 12. 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
13. 13. 50% WebPA weighting
14. 14. For Lower WebPA Weightings • Students receive a larger proportion of the group marks • The range of scores is lower
15. 15. 20% WebPA Weighting
16. 16. 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
17. 17. 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