Purpose: This study was specifically designed to examine how verb variability and verb overlap in a morphosyntactic priming task affect typically developing children's use and generalization of auxiliary IS. Method: Forty typically developing 2- to 3-year-old native English-speaking children with inconsistent auxiliary IS production were primed…

Purpose: This single-case study examines a complexity approach to target selection in grammatical intervention in three children with varying levels of mastery of tense and agreement. Specifically, we examine whether targeting a complex tense and agreement grammatical structure (auxiliary BE in questions) leads to generalization to other less…

Purpose: This study investigated the early rule-based sentence productions of 3- and 4-year-old children with severe speech disorders who used single-meaning graphic symbols to communicate. Method: Ten 3- and 4-year-olds requiring the use of augmentative and alternative communication, who had largely intact receptive language skills, received…

Purpose: Even without explicit instruction, learners are able to extract information about the form of a language simply by attending to input that reflects the underlying grammar. In this study, the authors explored the role of variability in this learning by asking whether varying the number of unique exemplars heard by the learner affects…

This study, with five adults diagnosed with Broca's aphasia with agrammatism, evaluated the acquisition and generalization of complex-sentence production using Linguistic Specific Treatment (LST) and the utility of syntactic theory in evaluating treatment effects. The study's findings support the use of LST, which applies syntactic theory to…

Four individuals with agrammatic aphasia were trained to comprehend and produce filler-gap sentences with wh-movement. Two participants received treatment first on the least complex structure (who-questions), and 2 received treatment on the most complex form (object-relative constructions). Object-relative training resulted in robust…