In the 1980s, Evers-Emden earned a doctorate in developmental psychology and began interviewing and writing about the phenomenon of "hidden children" from the points of view of the children, their biological parents, their non-Jewish foster parents, and their non-Jewish foster siblings.
Pada 1980an, Evers-Emden mendapatkan gelar dokterandes dalam bidang psikologi pengembangan dan mulai mewawancarai dan menulis tentang fenomena "anak-anak yang bersembunyi" dari pandangan anak-anak tersebut, orangtua biologis mereka, orangtua angkat non-Yahudi mereka, dan saudara-saudara angkat non-Yahudi mereka.