The study program German as a Second Language - Language Diagnostics and Language Development brings together recent findings from linguistics, language acquisition research, psychology, neurology and pedagogy and makes them usable for language development in German as a second language. Especially in this area, society needs urgently trained staff in preschool, school and extracurricular institutions. In order to adequately support children and adolescents with a migration background in their language development, in addition to linguistic (phonological, semantic, morphological, syntactic, pragmatic,