Recently, early childhood programs in the United States are serving increasing numbers of dual language learners (DLLs), many of whom have disabilities or are considered at risk. Vocabulary skills in preschool and kindergarten are strong predictors of DLLs' early literacy and later reading achievement. However, DLLs might initially and temporarily…

Recent changes to federal education laws for students with and without disabilities have kindled an increased interest in implementing evidence-based practices for teaching academic skills to all students, including students with severe disabilities and students learning English. Teaching students with significant disabilities who are learning…

This paper uses data from the Head Start Impact Study (HSIS), a nationally representative multisite randomized trial, to quantify variation in effects of Head Start during 2002-2003 on children's cognitive and socio-emotional outcomes relative to the effects of other local alternatives, including parent care. We find that (1) treatment and control…

This article describes the Peabody Picture Vocabulary Test-Third Edition, an assessment designed to test preschool children in vocabulary acquisition, screen both for giftedness and mental retardation, and measure English language proficiency in individuals for whom English is not a primary language. Its administration, standardization,…

The IADIS CELDA 2012 Conference intention was to address the main issues concerned with evolving learning processes and supporting pedagogies and applications in the digital age. There had been advances in both cognitive psychology and computing that have affected the educational arena. The convergence of these two disciplines is increasing at a…