Two methods used in the determination of student aptitude in adult language instruction programs in Australia are described and compared in this article. The first method screens potential students into homogeneous classes on the basis of previous education, while the second utilizes test results derived from the administration of the short form of the Modern Language Aptitude Test. Test results are correlated with language tutors' ratings of students. Procedures and results of the screening processes are discussed and summarized in several tables. (NL)