Purpose: Despite the unprecedented growth of Spanish-English dual language learners (DLLs) in new destination states--where DLLs have not been historically served--empirical understanding of their language and literacy skills is scant. Drawing on scientific understandings of bilingual language acquisition, we compare monolingually scored and…

Purpose: Children with developmental language disorder sometimes spontaneously repeat clinician models of morphemes targeted for treatment. We examine how spontaneous repeating of clinician models in the form of recasts associates with improved child production of those emerging morphemes. Method: Forty-seven preschool children with developmental…

Purpose: Recent behavioral studies have demonstrated the effectiveness of implementing retrieval practice into learning tasks for children. Such approaches have revealed that repeated spaced retrieval (RSR) is particularly effective in promoting children's learning of word form and meaning information. This study further examines how retrieval…

Languages differ in their preferences for particular intensifying constructions. While intensifying adjectival compounds (IACs) (e.g. "ijskoud, ice-cold") are productively used to express intensification in Dutch and English, in French this construction is hardly productive. Consequently, French-speaking learners may encounter…

Research Findings: A social validity measure was used to examine 56 bilingual preschool teachers' perceptions and acceptability of an interactive shared book reading vocabulary intervention implemented in English with Spanish-speaking preschool children (N = 334) in a dual language program model. Social validity outcomes indicated that bilingual…

Purpose: The aims of the study were to explore responses of children with developmental language disorder (DLD) to rich vocabulary instruction and to identify potential factors that contribute to outcomes. Method: Children with DLD participated in a language intervention embedded within a science camp. Using parent and clinician reports,…

A single subject alternating treatment design was used to compare most-to-least and least-to-most prompts to teach work tasks in community businesses. Four students with moderate to severe disabilities, two paraprofessionals, and one transition teacher participated in the study. Results of the study suggest that both prompting strategies were…

Measuring individual differences in children's emerging language abilities is important to researchers and clinicians alike. The 2 most widely used methods for assessing children's vocabulary both have limitations: Experimenter-administered tests are time-consuming and expensive, and parent questionnaires have only been designed for children up to…

Language ability plays a major role in children's future development. In the present study, the effect of three interactive reading approaches on children's language ability was investigated through a pre-posttest design. Participants were N = 73 children (aged 4-6) from three early childhood education classrooms. Classrooms were assigned to one…

A large linguistic distance exists between spoken Arabic and the Modern Standard Arabic (MSA) the literary language (a diglosia). Novice readers, therefore, struggle with the complex orthography of Arabic as well as the mastering of MSA. Here, we tested whether structured activities in MSA would advance kindergarteners' MSA aptitude by the end of…

In this thesis, I present three related papers that collectively investigate the instructional supports on screen and in the media viewing context that influenced English and heritage language vocabulary knowledge in DLLs. In study 1, I examine how specific pedagogical approaches used in educational media might benefit DLLs. In study 2, I…

Forty native Spanish-speaking children (age 8;0-10;3), 20 with Specific Language Impairment (SLI) and 20 with Typical Language Development (TLD), received a battery of psycholinguistic tests, IQ, hearing screenings, and the Spanish Non-word Repetition Task (NRT). The children's repetition of 20 non-words was scored. The percentage of correct…

The Authors examined classifier production during narrative retells by 10 deaf and hard of hearing students in grades 2-4 at a day school for the deaf following a 6-week intervention of repeated viewings of stories in American Sign Language (ASL) paired with scripted teacher mediation. Classifier production, documented through a…

Broad-stroke approaches to vocabulary teaching in preschool include effective instructional elements, yet may be too ill-structured to affect the vocabulary learning of children experiencing serious delays. Using a formative research approach, this study examines the design potential of a supplemental vocabulary instruction technique that…

This longitudinal randomized-control trial investigated the effectiveness of scientifically based reading instruction for students with IQs ranging from 40 to 80, including students with intellectual disability (ID). Students were randomly assigned into treatment (n = 76) and contrast (n = 65) groups. Students in the treatment group received…