There are unique challenges to estimating causal effects of preschool for students with special needs that have not received attention in the literature. We revisit the Head Start Impact Study (HSIS) to illustrate that when and how special needs is defined has implications for the internal validity of and interpretation of special needs subgroup…

Some aspects of child non-cognitive development in pre-school have independently been shown to predict academic outcomes in later primary and early high school. However, the extent to which each aspect uniquely predicts these outcomes remains unclear. It is also unclear as to what mechanisms may predict these aspects of non-cognitive development.…

This study explored print-processing and vocabulary differences among a group of 5th- and 6th-grade students who had scored below the 50th percentile on a standardized reading test. Guided by the simple view of reading, we applied cut scores (low/high) to the students' performance on print-processing and vocabulary tasks. The design allowed for…

This study investigates the relationship between nonword repetition (NWR) and vocabulary in 2-year-olds. Questions addressed are whether (1) NWR and vocabulary are associated, (2) phonotactic probability affects NWR, and (3) there is an interaction effect between phonotactic probability and vocabulary on NWR performance. The general aim of the…

Research into the effect of questions asked during storybook reading in preschool settings has rarely investigated questions that elicit higher order thinking. In the current study, Blank et al.'s Four Levels of Abstraction were used to code teacher questions and child responses from 177 individual storybook reading sessions with eight…

Learners with autism spectrum disorder (ASD) often exhibit difficulty in the area of reading comprehension. Research connecting the learning needs of individuals with ASD, existing effective practices, teacher training, and teacher perceptions of their own ability to teach reading comprehension is scarce. Quantitative survey methodology and…

Purpose: Research into how bilingual parents of children with autism spectrum disorder (ASD) make choices about their children's language environment is scarce. This study aimed to explore this issue, focusing on understanding how bilingual parents of children with ASD may make different language exposure choices compared with bilingual parents of…

Head Start and state prekindergarten (pre-K) programs can boost the school readiness of low-income children through the use of effective preschool curricula. Encouraging results from some studies suggest that children who receive targeted or content-specific curricular supplements (e.g., literacy or math) during preschool show moderate to large…

This project aimed to describe oral narrative retells of Spanish-English speaking dual language learners (DLLs) and examine relationships with standardized vocabulary assessments. Investigators described oral narrative retells of 145 DLLs in kindergarten and first grade by number of different words (NDW), words per minute (WPM), and…

We systematically assessed the relationships between growth of four components of verbal ability--Information, Similarities, Vocabulary, and Comprehension subtests of the Wechsler Intelligence Scale-Revised--and longitudinal growth from Grades 1 to 9 of the Woodcock-Johnson Psycho-Educational Battery Passage Comprehension subtest while controlling…

Morphophonological processing involves the phonological analysis of morphemes. Item-specific phonological characteristics have been shown to influence morphophonological skills in children. This study investigates the relative contributions of broad phonological skills and vocabulary to production and judgement accuracies of the Dutch past tense…

Background: Ability grouping can lower students' academic self-perceptions through reference group effects of class-average achievement on academic self-concept (ASC)--the "Big-fish-little-Pond"-effect (BFLPE; Marsh & Parker, 1984, J. "Pers. Soc. Psychol.," 47, 213). Although the effect itself is well documented, many open…

The present research explores working memory (WM) development in monolingual as well as emergent bilingual children immersed in an L2 at school. Evidence from recent years suggests that bilingualism may boost domain-general executive control, but impair nonexecutive linguistic processing. Both are relevant for verbal WM, but different paradigms…

Imagining alternatives to actual experiences is an important part of everyday life that can take many forms. One manifestation in middle childhood is the creation of elaborate imaginary worlds, called "paracosms." Retrospective reports of adults indicate that having a childhood paracosm is more commonly reported in individuals…

We examined the relation of parental socioeconomic status (SES) to the neural bases of subtraction in school-age children (9- to 12-year-olds). We independently localized brain regions subserving verbal versus visuo-spatial representations to determine whether the parental SES-related differences in children's reliance on these neural…