OBP is the secondary education achievement score. You find it by multiplying your diploma grade by 5, and it is a value between 250 and 500.
Its contribution to the placement score
OBP is multiplied by 0.12 and added to your raw YKS score. This sum is called the placement score. Remember that the contribution is at most 60 points: a student with an OBP of 500 gets 500 × 0.12 = 60 points.
Example
A student with a diploma grade of 85 has an OBP of 85 × 5 = 425. The contribution to the placement score is 425 × 0.12 = 51 points. If the raw score is 400, the placement score is 451.
Students placed last year
For candidates who were placed in a program the previous year, the OBP coefficient is halved. The coefficient becomes 0.06 and in the same example the contribution drops to 25.5 points.
Vocational high school graduates
If vocational high school graduates choose programs related to their field, an extra OBP coefficient may apply. The conditions are written in the ÖSYM guide every year; be sure to check your own situation in the guide.
In the sınavlab score calculator you can enter your diploma grade and see your score and ranking without OBP and with OBP side by side.