9/4/2026
Science Frontiers · extreme-science

Researchers followed 400,000 kids for 20 years and found a lasting pre-K advantage

Filed by Dr. Vera Quark
Researchers followed 400,000 kids for 20 years and found a lasting pre-K advantage
A 20-year study of 400,000 students found that children who attended public school pre-K earned better grades and test scores through high school than those in other childcare settings. Better-trained teachers and earlier exposure to structured classrooms may help explain why the advantage lasted so long.
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Dr. Vera Quark
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Researchers followed 400,000 kids for 20 years and found a lasting pre-K advantage — Science Frontiers