„Early disparities in SL (Anm.: scientific literacy) or numeracy skills already exist in kindergarten and have an impact on children’s later life. […] Numerous studies have shown that features such as a lower SES (Anm.: socioeconomic status), a lower level of parental education, or a migration background negatively affected young children’s language skills their numeracy skills or their SL.“
Dr. Jana Kähler u. a., The development of early scientific literacy gaps in kindergarten children. In: International Journal of Science Education 2020, Vol. 42, No. 12, S. 1989f.