We used to think that if the PSLE papers are tough, along with an overall poor student performance, the grades would be adjusted accordingly due to a bell curve. Likewise, if the PSLE papers is easy and an exceptional number of students do well, the students grades will also be adjusted. We were wrong.
Source: Straits Time,
" A spokesman for the ministry told The Straits Times: "School-based assessments and national examinations are standards-referenced, where the grades awarded reflect a candidate's own level of mastery in the subject based on an absolute set of standards." "This means a student's grades are not dependent on how well he performs in comparison with his peers"