“…So far, the most investigated languages in the context of returnees are German (based on returnees from Germany or Switzerland to Turkey, Daller, , and Kuhberg, , and to Portugal, Flores, , , ); and English (based on returnees from the United States to Japan, e.g., Hansen, ; Kubota, ; Snape, Matthews, Hirakawa, Hirakawa, & Yosoi, ; Taura, ; Yoshitomi, , and to Berman & Olshtain, ; Olshtain, ; Seliger, ). These studies differ substantially regarding not only the methods of data collection, but also the analyzed linguistic domains and the participants’ bilingual profile.…”