It makes sense to have an assessment to show proficiency.

To prepare, the children were asked to answer a reading question each day until they showed proficiency in expressing their comprehension.

He showed great proficiency in learning the local languages, especially Huron.

On a writing test administered to 55 fourth-grade students, 50 needed to show proficiency; 48 did.

This gave him more time to master the Tamil language in which he soon showed great proficiency.

On this occasion he is said to have showed outstanding proficiency and resourcefulness.

Additionally, a portion of the exam is to show proficiency with the statistical software used in the course.

Shermain, from a very young age, showed great proficiency for dance and song.

Shows great proficiency in all types of medicines and means of healing.

He showed early proficiency in the sport, quickly defeating the older children who had taught him how to play.