"English proficiency" is correct and usable in written English.
You can use it to discuss a person's level of English-speaking ability. For example, "Amy has a high level of English proficiency."
English proficiency is another individual predictor facilitating socioeconomic adaptation.
Many have limited English proficiency.
Rules on ages and English proficiency will be relaxed.
"Implied in these remarks," Mr. Bloomfield said, "was similar discrimination against students with limited English proficiency".
A provider of language tools reports that business English proficiency scores have increased strikingly.
Among economically disadvantaged students and those with limited English proficiency, the gap continues to widen.
The students were separated into six classes, grouped by age, school experience and English proficiency.
Certificates indicate English proficiency.
Strata English proficiency (ESL).
a. Certificates indicate English proficiency .
The policy enhances students' English proficiency.
