Within the research on bilingual learning, first studies have revealed that content learned in one language is retrieved more slowly when participants have to switch language from instruction to testing (i.e., language-switching costs, LSC). These costs are attributed to language-dependent knowledge representations. However, the cognitive…

This handbook synthesizes accumulated research evidence about the main areas of language teacher education. It systematically applies research synthesis to the field, providing coherent, systematic insights into various aspects of language teacher education. Each chapter compares research conducted between 2010-2020 within a specialized area of…