„While the learning that occurs prior to school entry is more predictive of later outcomes than learning during the first year or two in school, the initial years of schooling can still alter children‘s later learning trajectories. […] Nonetheless, most children who have weak early skills do not entirely catch up with their peers who had stronger skills prior to starting school.“
Rowena Phair, MA, International Early Learning and Child Well-being Study. Assessment Framework (2021), S. 16.