Specific language impairment in Spanish & Catalan

This study examines empirical data from Spanish and Catalan children with SLI and argues in favor of the grammatical agreement deficit hypothesis (Clahsen 1989, 1991; Clahsen et al. 1997). Following Chomsky’s (1995) system of morphosyntactic features in terms of interpretability, we will assume that all uninterpretable features are affected in the grammar of children with SLI. The data reveal a morphosyntactic deficit in the Determiner system and in the subject-verb agreement paradigm, posing problems with case marking.