It was tried only in small classes, but there it showed, for example, that these student-assigned grades on the y-axis are actually very well correlated with the teacher-assigned grade on the x-axis.
Iskušana je samo u malim razredima, ali tamo je pokazala npr. da su ovi studenti koji su ocjenjivali (na y-osi) ustvari usko vezani korelacijom sa ocjenama nastavnika (na x-osi).