Series
The Assessment Series
How a test is built, scored and defended: where a pass mark comes from, what a scaled score actually measures, how a bad question is found and retired, and how cheating is detected without anybody watching the room. Written by somebody who sits a lot of exams. Part of Under the Hood.
Where Does a Pass Mark Come From?
A pass mark is a judgement made by a panel of people through a documented procedure, and it is not a percentage of the questions. A raw percentage cannot be the standard because question difficulty varies, so the same score means different things on two forms of the same exam. How a panel defines the barely competent candidate as a person and then judges every question against them.
Coming soon