101 Language Assessment BatteryLevel III (LAB III) in English and Spanish at the beginning and close of the school year. During the research period, this test was given to the research population in October 1981 and May 1982. This test was administered under standardized testing conditions and was computer scored. The scores for all students were made available to the researcher. As an added measure of Spanish- reading ability, all bilingual students were administered the Pruebas de Lectura, Serie Interamericana, Nivel 3, Parte 3, Nivel de Comprensin (Inter-American Series, Reading Test, Level 3, Part 3, Reading Compre hension). Students were allowed to use as much time as needed to complete this reading test which was administered during April of 1982. School Program The bilingual program at this school consists of several components. Instruction in the core subjects of math, science, and social studies is provided by bilingual teachers who use the same textbooks as those used in the regular program of the school. Explanations and review of subject matter are provided in English and Spanish in the core classes. Students are tested in English. During the school day, three of the seven class periods are spent in core curriculum. An additional period is devoted to ESL instruction. All students in the bilingual program are required to attend these four classes and physical education. The remaining two periods are allocated for electives such as home economics, art, music, vocational education, and Spanish. Before the research was undertaken, the bilingual teachers had cautioned me that it was quite likely students and their parents would not want to participate in the research. The teachers believed that