Children Who Were Enrolled in Head Start or a Similar

Children who were enrolled in Head Start or a similar enriched preschool program

A) typically have adult IQ scores that are approximately 10 points higher than the IQ scores of adults who did not have an enriched educational program as a child.
B) are more likely to form secure attachments with teachers and other school officials.
C) show no gains or positive effects beyond first grade as a result of their experiences.
D) are more likely to achieve success in school and to graduate from high school.