Background: The Language Development Survey (LDS) and the MacArthur-Bates Communicative Development Inventories (MB-CDI) are two parental report forms that have been productive in providing data on early child language during the past 30 years. The instruments have been used both in studies relating to typical developing children and in screening…

Purpose: The aim of this study was to identify variability in word-learning mechanisms used by late-talking children using a longitudinal study design, which may explain variability in late-talking children's outcomes. Method: A cohort of typically developing children (n = 40) and children who were classified as late-talking children at age 2;0…

This study examined the extent to which early intervention (EI) speech-language pathologists (SLPs) use and recommend language input strategies for caregivers of children with language delays and the child factors associated with these decisions. Participants included 213 SLPs who completed an online survey. Wilcoxon signed-rank tests, Friedman's…

Given the rich bound morphology of Spoken Arabic, an attempt was made here to construct a developmental measure corresponding to the mean length utterance (MLU) in English and to morpheme-per-utterance (MPU) in Hebrew. The adaptation to Arabic resulted in a new measurement termed Arabic-MPU, that was experimentally tested on a sample of 98…

Background: Difficulties in language development are related to social and emotional problems, lower academic outcomes, and lower quality of life from childhood to adolescence. These grave consequences might be significantly reduced by timely identification and professional support. The introduction of systematic screening for language delay (LD)…

This study investigates the influence of semantic maturation on early lexical development by examining the impact of contextual diversity--known to influence semantic development--on word promotion from receptive to productive vocabularies (i.e., comprehension-expression gap). Study 1 compares the vocabularies of 3685 American-English-speaking…

Purpose: It is common for speech-language pathologists (SLPs) to simplify their utterances when talking to children with language delays, but there is disagreement about whether simplified utterances should be grammatical (e.g., "Daddy is running, See the cookie?") or telegraphic (e.g., "Daddy running, See cookie?"). This study…

Children referred for audiology evaluation due to speech and language delays represent a neurodevelopmentally high-risk group. The audiology evaluation is a behaviorally-challenging encounter early in the diagnostic process. We assessed interfering behaviors (IB) that complicated completion of audiometry as predictors of autism spectrum disorder…

Early intervention (EI) services--including but not limited to speech, physical, occupational, and mental health therapies--have been proven to significantly benefit young children's development, shaping their readiness for school and offering pivotal support for caregivers. However, racial disparities persist in identification for and access to…

The long-term objective of this project was to better understand how shorter auditory experience and spectral degradation of the cochlear implant (CI) signal impact spoken language processing in deaf children with CIs. The specific objective of this research was to utilize psycholinguistic methods to investigate the mechanisms underlying observed…

There is a well-documented association between developmental language disorder (DLD) and executive function (EF) deficits. These co-occurring deficits pose risks to students' short- and long-term academic and social outcomes. In the United States, school-based speech-language pathologists (SLPs) are tasked to ensure that students with DLD are able…

This study aimed to replicate and extend findings from the only known study that has conducted latent profile analysis of developmental profiles, measured by the Battelle Developmental Inventory, for children in Early Intervention (EI). Children (N = 57,966) who were enrolled in Massachusetts EI sites between 2011 and 2019 and completed a Battelle…

Purpose: The aims of this study were (a) to assess the efficacy of the Vocabulary Acquisition and Usage for Late Talkers (VAULT) treatment and (b) to compare treatment outcomes for expressive vocabulary acquisition in late talkers in 2 conditions: 3 target words/90 doses per word per session versus 6 target words/45 doses per word per session.…

Purpose: The particular statistical approach researchers choose is intimately connected to the way they conceptualize their questions, which, in turn, can influence the conclusions they draw. One particularly salient area in which statistics influence our conclusions is in the context of atypical development. Traditional statistical approaches…

The purpose of the present study was to address the extent to which narrative intervention improved late talkers' ability to generate personal narratives and the extent to which the effect of narrative intervention was maintained after three weeks of no intervention. Three late-talking preschool children participated in this narrative intervention…