Little is known about the impact of teachers' questions on child bilingual's heritage language reading process and outcomes. This study examined the role of adults' questions in English-Mandarin bilingual preschoolers' Mandarin word learning, story comprehension, and reading engagement. Ninety-nine 4- to 5-year-old preschoolers in Singapore were…

Despite the substantial expansion in vocabulary research since the 1980s, we still know very little about how vocabulary develops over time and what factors influence this development. This methodological overview discusses key issues and considerations in vocabulary breadth growth assessment to help advance research in this area. The report…