Purpose: The main aim of the systematic review and meta-analysis was to evaluate the effectiveness of language interventions for school-aged children who are d/Deaf and hard of hearing (DHH). We focused on studies targeting meaning-based aspects of language, such as vocabulary, grammar, and narrative skills. We included randomized controlled…

As globalization and migration intensify, heritage language attrition has emerged as a critical concern, particularly among second- and third-generation immigrant communities. Despite early exposure, many heritage speakers lose proficiency due to limited use and societal pressure to assimilate linguistically. This study investigates the state of…