Purpose: Despite the increasing population of dual language learners (DLLs) in the United States, vocabulary measures for young DLLs have largely relied on instruments developed for monolinguals. The multistudy project reports on the psychometric properties of the English--Spanish Vocabulary Inventory (ESVI), which was designed to capture unique…

Few, if any, reliable and valid screening tools exist to identify language delay in young Spanish-English speaking dual-language learners (DLLs). The early communication indicator (ECI) is a brief, naturalistic measure of expressive communication development designed to inform intervention decision-making and progress monitoring for infants and…

Purpose: Few caregiver-implemented naturalistic language interventions (NLIs) are available for Spanish-speaking Latinos who have young children under 3 years with language delays, and there is a scarcity of studies that provide information about intervention development or social validity of interventions for this group. This study introduces…