Bilingual education research methods should incorporate a multilevel model of pupils, classrooms, and schools and consider various cognitive and noncognitive outcome variables focusing on progress rather than attainment to determine not whether bilingual education is more effective than monolingual instruction but which aspects of bilingual…

The use of the Language Background Questionnaire is analyzed, and the following criticisms are offered: (1) the varying nature and range of questions used, (2) the inclusion of indirect language background questions, and (3) previous methods of categorization of individuals into groups using language background scores. (SL)