An ELT Glossary : Proficiency Tests

Proficiency tests aim to certify that a learner has reached a specific level of competence in the language. For example, if a learner can pass the Cambridge English Preliminary English Test, it shows that s/he has reached CEFR B1 level; if on the other hand s/he can pass the Cambridge English First, that s/he has reached CEFR B2.

Proficiency tests are generally administered by recognised examining bodies (such as Cambridge English) and are often the aim and end point of the course the learner is following.