We expect that word knowledge accumulates gradually. This article draws on earlier approaches to assessing depth, but focuses on one dimension: richness of semantic knowledge. We present results from a study in which three distinct item types were developed at three levels of depth: knowledge of common usage patterns, knowledge of broad topical…

This study investigates change in the home language environment of Language Minority (LM) learners between kindergarten and eighth grade, drawing on data from the National Center for Education Statistics' Early Childhood Longitudinal Study-Kindergarten (ECLS-K) Cohort. The analytic sample included 1,538 children whose parents reported a language…