Proficient use of spatial terms such as "under," "to the left of" or "in front of" is a central component of daily communication and is important in the development of language and spatial cognition. Here we examine spatial language abilities in intellectually high-functioning individuals with autism spectrum…

Universal screening of very early school-age children (age 4-7 years) is important for early identification of learning problems that may require enhanced learning opportunity. In this context, use of standardized instruments is critical to obtain valid, reliable, and comparable assessment outcomes. A wide variety of standardized instruments is…

To become successful communicators, children must be sensitive to the clarity/ambiguity of language. Significant gains in children's ability to detect communicative ambiguity occur during the early school-age years. However, little is known about the cognitive abilities that support this development. Relations between cognitive flexibility and…

Using multitrait, multimethod data, and confirmatory factor analysis, the current study examined the effects of arithmetic item formatting and the possibility that across formats, abilities other than arithmetic may contribute to children's answers. Measurement hypotheses were guided by several leading theories of arithmetic cognition. With a…

To date, reports of empirically validated comprehensive intervention programs for children with autism spectrum disorder (ASD) have been limited to preschool-age children. We examined the effects of a model inclusive kindergarten program for children with ASD. Forty-one children received instruction in an inclusive kindergarten program with their…

Some children demonstrate adequate or better reading achievement in early school grades but fall significantly behind their peers in later grades. These children are often referred to as late-emerging poor readers. In this study, we investigated the prevalence and heterogeneity of these poor readers. We also examined the early language and…

"Literacy Express" is a preschool curriculum designed for three-to five-year-old children. It is structured around units on oral language, emergent literacy, basic math, science, general knowledge, and socioemotional development. It can be used in half-or full-day programs with typically developing children and children with special…

"Curiosity Corner" is an early childhood curriculum emphasizing children's language and literacy skills. It comprises two sets of 38 weekly thematic units, one for three-year-olds and one for four-year-olds. Program staff conduct daily lessons using sequential daily activities. The What Works Clearinghouse (WWC) reviewed three studies of…