What is level of proficiency?

Related questions

1. What is the difference between proficient and excellent?
2. Should one be effective before being efficient?
3. Is conversational better than fluent?
4. Is fluent better than intermediate?
5. What counts as fluent?
6. What is social efficiency?
7. What are the types of efficiency?
8. Is intermediate or proficient better?
9. Is Intermediate better than fluent?
10. What is the difference between fluent and conversational?

Tags

1. #scale
2. #measure
3. #demonstrate
4. #their
5. #competency
6. #compare
7. #proficiency
8. #combination
9. #individual
10. #specific
11. #ability
12. #level
13. #occupation
14. #current
15. #instrument
16. #performers