To Determine Whether Early Education Programs Can Prevent Intellectual Disability,the

Multiple Choice

To determine whether early education programs can prevent intellectual disability,the Infant Health and Development Program assigned half of a group of premature,low-birth weight infants to an early intervention group with a program that lasted until age 3 and compared their outcomes to those of the infants in the control group.Which of the following best describes the findings of the study?

A) Children who participated in the program had much higher IQs at 3, 5, and 8 years old than did children in the control group.
B) Children who participated in the program had slightly higher IQs at 3, 5, and 8 years old than did children in the control group.
C) Children who participated in the program had much higher IQs at age 3 and 5 than those in the control group but these differences disappeared by age 8.
D) Children who participated in the program had slightly higher IQs at age 3 than those in the control group, but these differences disappeared by age 5.