The focus of this article is the experiences of Deaf Philadelphians vis-à-vis language policy and practice at PSD. We delineate the official and unofficial communication philosophies and pedagogies from the school's inception to present day, providing a framework for understanding the trajectory of linguistic freedom and restriction of its…

Across a diverse range of languages, children proceed through similar stages in their production of causal language: their initial verbs lack internal causal structure, followed by a period during which they produce causative overgeneralizations, indicating knowledge of a productive causative rule. We asked in this study whether a child not…