A subjective test is evaluated by giving an opinion. It can be compared with an objective test, which has right or wrong answers and so can be marked objectively. Subjective tests are more challenging and expensive to prepare, administer and evaluate correctly, but they can be more valid.
Tests of writing ability are often subjective because they require an examiner to give an opinion on the level of the writing.
In the classroom
Learners preparing for a subjective writing test, for example a letter of complaint, need to think about their target audience, since they are being asked to produce a whole text. Teachers can help them by emphasizing the importance of analysing the question and identifying the key points of content, register, and format.