Abstract

The aim of the present study is to offer a comparative perspective on the level of attainment of productive vocabulary in three different high school settings in the Costa Rican educational system. The study compares the results obtained in two tasks that demand controlled production and free productive vocabulary from students who attend these schools. The vocabulary was measured through the Productive Vocabulary Levels Test (PVLT) and a free composition, respectively. The first school is a school where content based instruction is implemented. The second school, a semi-private school, offers more hours of instruction of English as a Foreign Language than the minimum required by the Ministry of Education, although English is not used to teach non-language subjects. In the third school, a public school, the minimum number of hours officially required is offered to the students (532 hours). The results in the controlled productive vocabulary task and in the free composition favor, by far, the performance of the students who are taught using English as a medium of instruction. These results point to a much-needed change in the teaching methodology of EFL in Costa Rica, especially when it comes to the teaching practices implemented in most public schools.

Key Words: Productive Vocabulary Levels Test (PVLT); vocabulary; writing; total word counts; vocabulary size