R score
The R score (cote de rendement au collégial, CRC or cote R in French) is a
statistical method which classifies CEGEP students' academic performances in Quebec. It is
used by Quebec universities for selection purposes.
The R score is in fact a z-score to which an indicator of group strength (ISG) has been added.
R score = ( Z score + ISG + C ) x D
The R score calculation is done for every CEGEP course. The final, computed R score is the result of the weighted averaging of all the R scores from the individual courses.
The Z score gives an indication of the
grade of the student with respect to the grades of other students in the class.
The ISG is the Indicator of the Strength of the Group. This
group strength is determined using the weighted grade results of all of the courses taken in Secondary (high school) IV and V for all of the group's students. The ISG was implemented primarily to offset the advantage enjoyed by high-performing students in weak class groups over equally high-performing students in strong class groups. The inclusion of the ISG in the determination of the R score allows for a more equitable comparison of students between themselves, regardless of their CEGEP's academic rank, although its efficacy remains in dispute.
Most R scores do indeed range from 15 to 35; average marks should result in an R score of 25.
Source:
http://en.wikipedia.org/wiki/R-score
