The Abecedarian Project Conducted at the University of North Carolina

The Abecedarian Project conducted at the University of North Carolina demonstrated that high-risk children at a high-quality preschool

A) had raised scores on intelligence tests but that gain faded out by sixth grade.
B) had slightly fewer arrests and higher incidents of home ownership than the controls.
C) earned significantly higher scores on intellectual and academic measures as young adults.
D) showed no difference in short- or long-term achievement than students in a control group.