„Several studies reported that extended school time appeared to be effective for at-risk students or that more time benefitted minority, lower socio-economic status, or low-achievement students the most. In addition, extending school time may be particularly important for single-parent families and families in which both parents work outside the home.“
OECD (Hrsg.), Equity and Inclusion in Education – Finding Strength through Diversity (2023), S. 245.