How to convert civil service aptitude exam section scores
This page covers Korea's PSAT (Public Service Aptitude Test) for civil service recruitment, not the College Board PSAT/NMSQT taken by US high school students. This aptitude examination is used to screen applicants for government posts and is split into three reasoning sections: verbal reasoning, data interpretation and situational judgment. Right after the test all you usually have is a count of correct answers. Enter the correct answers and the question count for each section to get a raw score on a 0 to 100 scale, and add the cohort mean and standard deviation from your score report to convert that into a standard score.
The raw score divides correct answers by the number of questions and multiplies by 100. The standard score subtracts the cohort mean from the raw score, divides by the cohort standard deviation, multiplies by the scale deviation and adds the scale midpoint. The equation actually used is printed in the results so you can see exactly which conversion produced the number.
Because no official conversion is published, this page does not reproduce any official standard score formula. Leave the cohort statistics blank and only raw scores appear. Percentile ranking and any prediction of whether you advanced are not supported, and the section minimum differs by post and year, so it is an input. The Korean version of this page covers an examination specific to Korea.
Frequently asked questions
No. This page is about a civil service aptitude examination used to screen candidates for government posts, with three reasoning sections. It has nothing to do with the College Board test taken by high school students.
Not necessarily. No public formula converts raw scores into official standard scores for this exam, so the page applies the equation displayed in the results using the cohort mean and deviation you supply.
Leave both blank for that section and only the raw score is shown. Fill in all three sections to get a combined standard score total.