One aim of this article is to shift mindsets from the traditional identification of written language abilities that are "missing" in students with specific learning disabilities (SLDs) to writing assessment as the discovery of more complex language strengths foundational to success across disciplines. The multiple language-levels (MLL)…

A novel instrument, the Features of Excellent Arguments task (FEXA), was developed to elicit adolescents' judgments about argumentative essays displaying to varying degrees features characteristic of strong persuasive writing: academic language, rich evidence, multiple perspectives, and rhetorical appeal. We collected students' categorical choices…