The Basic English Skills Test and its supplement (Best Plus Supplement), a structured oral interview, were administered to 72 of 119 limited English proficient 12th grade students in the Dade County (Florida) Public Schools, to determine their oral proficiency. The students were native speakers of Haitian-Creole, Spanish, and Vietnamese. Oral proficiency was also rated by teachers from their English for Speakers of Other Languages classes. The teachers also rated a comparison group of 29 students who had already completed the course. Thirteen students were retested to determine interrater reliability and test validity. Of the 72 tested students, 62% had good to excellent oral proficiency; 76% of the students who had completed classes in English for Speakers of Other Languages were rated good to excellent. However, the latter group required an average of only 4.5 semester credits to exit the classes; the 12th graders being tested had already completed an average of 6 semester credits. Length of residence in the United States was not related to the oral proficiency scores. Both the students and teachers participating in the testing found the experience positive and valuable. (Appendices include the questionnaires administered to students and to teachers). (MGD)