Answered You can hire a professional tutor to get the answer.
QUESTION
The majority of early-intervention programs in the 1960s that were designed to enhance the intellectual development of poor children: were...
The majority of early-intervention programs in the 1960s that were designed to enhance the intellectual development of poor children:
were well-planned, large-scale programs.
initially increased children's IQ scores substantially.
were ineffective in preventing assignment to special-education classes and decreasing the likelihood of being held back a year in school.
had long-term effects on IQ scores.
