Recasting is a language intervention technique in which an adult responds to a child’s utterance by repeating the child’s words in a modified or corrected form while preserving the original meaning. It provides the child with an immediate model of more advanced or correct language structure (for example, if a child says “doggy run,” the adult might recast as “The dog is running”). Recasts can be focused on specific language targets (e.g., grammatical morphemes) or broad, and they may be corrective (fixing an error) or non-corrective (adding information) depending on the context.
Camarata, Stephen M., and Keith E. Nelson. 2006. “Conversational Recast Intervention with Preschool and Older Children.” In Treatment of Language Disorders in Children, ed. R. J. McCauley and M. E. Fey, 237–264. Baltimore: Paul H. Brookes.
Cleave, Patricia L., Stephanie D. Becker, Maura K. Curran, Amanda J. Owen Van Horne, and Marc E. Fey. 2015. “The Efficacy of Recasts in Language Intervention: A Systematic Review and Meta-Analysis.” American Journal of Speech-Language Pathology 24 (2): 237–255. Link