This article needs additional citations for
The rationale behind S'levels was to permit the Ministry of Education to allocate 400
Until 1960, the actual mark was provided to candidates. The S'level Higher Mathematics papers, for example, were not marked unless at least 75 (Distinction) was secured in the A'level Pure and/or Applied mathematics papers. The marks were normalised, but usually completion of 2 or 3 questions of 10 on the paper offered was sufficient to secure a distinction. The highest possible score was 90 for 10 excellent answers, due to normalisation.
Although S'levels were marked and graded in isolation from A'levels, it was not commonly a standalone qualification and was usually attempted only by candidates who were also sitting an A'levels in the same subject and who were likely to obtain an "A" grade (the top grade) in that examination (and results only given to candidates who had actually achieved an "A" or a "B"). The subject matter of S'levels was identical to the A'level syllabus, but the questions considerably harder. S'levels principally aimed to test candidates confronted with unfamiliar situations and shoe their reasoning.