The theory that reduction transformations provide speakers with the option of deleting redundant information when communicating to a topic-cognizant audience is supported. In the experiment, college physiology students were provided with deep structure proximal sentences (base propositions), and asked to communicate them to different audiences,…

If the basic operations hypothesis (EJ 184 227) is interpreted as a general principle governing acquisition of all movement rules, it may obscure the fact that children distinguish between unbounded and local rules. Error patterns support this distinction, lending credence to theories with separate status for the two rule types. (Author/RD)