Target language use and development and sociocultural and psychological adaptation during study abroad: A systematic narrative review of barriers and facilitators. - Devlin, Anne Marie; Riordan, Emma; Borràs, Judith; Victoria Soulé, María; Köylü, Zeynep; Nicolaou, Anna; Vranješ, Sanja Marinov; Onder-Ozdemir, Neslihan; Ehrsam, Kristina; Heinzmann, Sybille; Kırkgöz, Yasemin; Magliacane, Annarita; et al. (Frontiers: The Interdisciplinary Journal of Study Abroad, 2026)