Incomplete Acquisition American Russian * (Introduction-5. Verbal Categories‪)‬

Abstract: This paper has two main goals: (i) to provide a description of the language of incomplete learners of Russian living in the U.S. and (ii) to identify across-the-board differences between a full language and an incompletely learned language. Most data used here come from American Russian, a reduced and reanalyzed version of Russian spoken in the U.S. by those speakers who became English-dominant in childhood. Incomplete acquirers of Russian demonstrate significant intra-group variation, which corresponds to similar variation found among incomplete learners of other languages. However, there are a number of structural properties that are shared by American Russian speakers regardless of their proficiency level and that distinguish their language from the baseline variety of Russian. American Russian therefore cannot be defined solely on geographical grounds; it differs significantly from varieties of Russian spoken by subjects who maintain language competence appropriate to uninterrupted acquisition. The paper also demonstrates a correlation between vocabulary deficiency and gaps in the grammar of American Russian. Such a correlation suggests a compact method of estimating incomplete acquirers' proficiency based on a concise lexical test. 1. Introduction