The study developed a model of linguistic constructs to predict writing quality for college basic writers and analyzed how those constructs changed following instruction. Analysis used a corpus of argumentative essays from a quasi-experimental, instructional study with 252 students (MacArthur, Philippakos, & Ianetta, 2015) that found large…

Purpose: This study explores the hypothesis that vocabulary growth can have 2 types of effects in morphosyntactic development. One is a general effect, where vocabulary growth globally determines utterance complexity, defined in terms of sentence length and rates of subordination. There are also specific effects, where vocabulary size has a…

The purpose of this study was to determine if the frequent use of LanguageLinks: Syntax Assessment and Intervention (LL), produced by Laureate Learning Systems, Inc., as a supplemental classroom activity, affected morphosyntax structures (determiners, tense, and complementizers) in participants who are Deaf/Hard of Hearing (DHH) and use American…