Thirty years of research has uncovered the broad principles that characterize spoken word processing across listeners. However, there have been few systematic investigations of individual differences. Such an investigation could help refine models of word recognition by indicating which processing parameters are likely to vary, and could also have important implications for work on language impairment. The present study begins to fill this gap by relating individual differences in overall language ability to variation in online word recognition processes. Using the visual world paradigm, we evaluated online spoken word recognition in adolescents who varied in both basic language abilities and non-verbal cognitive abilities. Eye movements to target, cohort and rhyme objects were monitored during spoken word recognition, as an index of lexical activation. Adolescents with poor language skills showed fewer looks to the target and more fixations to the cohort and rhyme competitors. These results were compared to a number of variants of the TRACE model (McClelland & Elman, 1986) that were constructed to test a range of theoretical approaches to language impairment: impairments at sensory and phonological levels; vocabulary size, and generalized slowing. None were strongly supported, and variation in lexical decay offered the best fit. Thus, basic word recognition processes like lexical decay may offer a new way to characterize processing differences in language impairment.

These findings suggest that there is a relationship between language ability and speech disruptions. Higher disruption rates at phrase boundaries in children with SLI than in their age-matched peers reflect lexical and syntactic deficits in children with SLI.

Students training for clinical careers must acquire skills for teaching clients, their families, and fellow professionals. Guidelines for training programs in Communication Sciences and Disorders (Speech-Language Pathology), however, do not currently include standards for pedagogy. The aim of this study was to measure changes in undergraduate students' perceptions of teaching and learning following an Instructional Internship experience, where they served as teaching assistants for foundational knowledge courses in the major. Using a qualitative research design, we coded 31 participants' statements from pre- and post-internship essays and identified major themes and sub-themes.                Our results indicate that by participating in a teaching experience, students develop a deeper appreciation for the relationships between classroom pedagogy, their own learning, and clinical practice. While this study focuses on a pedagogical experience for undergraduate students in a Communication Sciences and Disorders program, the principles and results are generalizable to other professions that train students to provide clinical and educational services.Keywords: teaching assistants, instructional interns, mentoring, doctoral shortage, undergraduates

Purpose: This study examined the relationship between arithmetic word problem solving skill in first graders and 1) their oral language skill, 2) their nonverbal understanding of mathematical sets, and 3) rewording and gesture scaffolds designed to help the children access both the linguistic and the nonverbal content of Compare 6 word problems. Method: Two groups of first graders (15 with good oral language skill and 15 with low oral language skill) solved a matched set of verbal and nonverbal arithmetic problems, followed by three types of Compare word problems. Twenty first graders with low oral language skill (9 with low normal language (LN) and 11 with a diagnosis of language impairment (LI)) then solved orally-presented Compare 6 word problems under 4 scaffold conditions: 1) traditional wording, 2) traditional wording + gesture, 3) rewording, and 4) rewording + gesture. Results: Children with low oral language skill had greater difficulty solving orally-presented arithmetic word problems than their peers with good language skill, but performed comparably on a nonverbal arithmetic task. Using proportion of problems solved correctly, rewording Compare 6 word problems was facilitative for the LN group but not for the LI group. Changing the problem wording from a Compare 6 to a Compare 3, by using 'more than' instead of 'fewer than' and by eliminating pronoun anaphora, resulted in comparable performance to rewording that also included a rationale, optional verbs and placing the question first. The gesture scaffold was marginally significant for both groups. Conclusions: The LI group did not benefit from implicitly-presented rewording or gesture scaffolds; the LN group did benefit from the rewording scaffold. The gesture scaffold was marginally facilitative despite the finding that children with low oral language skill were able to access nonverbal information in a nonverbal arithmetic task.

Identify and avoid the risks involved in using representations, and use these suggestions to scaffold conceptual congruence.