Fragile X syndrome (FXS) is the leading inherited cause of intellectual disability. The syndrome is caused by a single gene mutation on the X chromosome. Although individual differences are large, most individuals with FXS display weaknesses across all language and literacy domains compared with peers of the same chronological age with typical…

Current thinking about language, learning, and literacy are discussed, focusing on such themes as: literacy as a part of language learning, understanding text and written language modes, the "metas" in language and cognition, and maintaining a clinical focus in classroom contexts and beyond. Four researcher-clinicians offer observations about…

The impact of a disordered phonological system (expressive or receptive) on language development is examined. Research results and guidelines are presented for identification of critical intelligibility and phonological awareness deficiencies and for intervention. Options for expediting intelligibility gains and research findings on enhancing…