IQ Gains from Early Childhood Programs Fade

Children enrolled in Head Start or in another enriched preschool program, compared to similar children without such preschool, typically show a gain of about 10 IQ points during the year of the Head Start experience. This IQ gain typically fades and then disappears within the first few years of school, so that by second grade neither IQ nor achievement test scores nor¬ mally reveal any difference in performance between those children who had been in Head Start and those who had not been in...

 IQ Gains in Early Schooling Fade

Children enrolled in Head Start or in another enriched preschool program, compared to similar children without such preschool, typically show a gain of about 10 IQ points during the year of the Head Start experience. This IQ gain typically fades and then disappears within the first few years of school, so that by second grade neither IQ nor achievement test scores nor¬ mally reveal any difference in performance between those children who had been in Head Start and those who had not been in...