Figure 1.
Proportions of children at different grade levels of achievement at age 9 and 18 for Lower-(IQ<85) vs. Higher-IQ (IQ≥85) groups. Redbox indicates the grades at which children were placed at age 9 and 18.
Proportions of children at different grade levels of achievement at age 9 and 18 for Lower-(IQ<85) vs. Higher-IQ (IQ≥85) groups. Redbox indicates the grades at which children were placed at age 9 and 18.