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…

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…

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…

A collection of cognitive, linguistic, and spelling measures were administered to third-grade English L1 and L2 learners. To capture formative assessments of children's developing mental graphemic representations (MGRs), spelling errors in isolation were subjected to analysis across three metrics: (1) Phonological constrained; (2)…

Many studies have demonstrated that listeners use information extracted from verbs to guide anticipatory eye movements to objects in the visual context that satisfy the selection restrictions of the verb. An important question is what underlies such verb-mediated anticipatory eye gaze. Based on empirical and theoretical suggestions, we…

We examined earlier oral narrative and decoding and later reading in two samples spanning the first four years of reading instruction. The Year 1 sample (n = 44) was initially assessed after one year of instruction (M = 6; 1 years) and followed through their third year (M = 8; 1 years); the Year 2 sample (n = 34) assessed after two years of…

Large numbers of children of low income families in the United States arrive at kindergarten already far behind their more affluent peers on measures of school readiness. In the absence of any federal preschool policy and amidst alarm about this growing divide, universal prekindergarten (UPK) programs have been launched around the United States,…

Lexical access is a core component of word processing. In order to produce or comprehend a word, language users must access word forms in their mental lexicon. However, despite its involvement in both tasks, previous research has often studied lexical access in either production or comprehension alone. Therefore, it is unknown to which extent…

Research Findings: This study of kindergarten monolingual and Dual Language Learners (DLLs) (N=263; mean age = 63.40 months) and their teachers (N=27) found significant mean differences in the observed quality of language interactions in classrooms with differing proportions of DLLs. Teachers instructing in classrooms with higher numbers of DLLs…